{"title":"Calcium Reactor","description":null,"products":[{"product_id":"octo-calreact-140-calcium-reactor","title":"Octo CalReact 140 Calcium Reactor","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus CalReact 140 Controllable DC Calcium Reactor\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eCalReact 140\u003c\/b\u003e (SKU: OCT-CALR140) is an advanced, highly controllable aragonite-dissolving reactor system engineered to maintain balanced levels of calcium, alkalinity, and trace elements in demanding marine reef aquariums up to 250 gallons. As stony corals grow, their daily skeletal uptake outpaces traditional multi-part liquid dosing routines, introducing chemical volatility and climbing operating costs. The CalReact 140 replaces daily manual dosing by continuously circulating aquarium water through its 5.5-inch chamber alongside pressurized carbon dioxide (CO2​). This gas safely depresses the internal pH to an acidic level, gently melting crushed ancient coral media down into its raw, bio-available mineral forms.\u003c\/p\u003e\u003cp\u003eThe premium distinction of the CalReact 140 lies in its propulsion system: the controllable \u003cb\u003eVarioS 2 DC recirculation pump\u003c\/b\u003e. Unlike traditional, rigid alternating current (AC) pumps, the variable-speed VarioS 2 pump operates at a safe 24V working voltage, utilizing a specialized pinwheel impeller, high-grade ceramic shaft, and detached controller to refine your flow dynamics seamlessly. Embodying an optimized \u003cb\u003ereverse-flow fluid layout\u003c\/b\u003e, the pump continuously pushes water up from the bottom grid. This uniform upward lift prevents heavy polymer aragonite from packing down into solid bricks or forming anaerobic dead spots. Hand-crafted from solid, optical-grade cast acrylic and finished with an easy-to-remove thumbscrew lid, this elite reactor offers unparalleled chemical stability for thriving hard coral displays.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eVariable Speed VarioS Pump:\u003c\/b\u003e Features multiple speed settings and feed-pause control modes, seamlessly integrating with third-party controllers via a 0–10V port.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Recirculation Engineering:\u003c\/b\u003e Traps and recirculates undissolved gas pockets within the upper neck structure, optimizing structural efficiency.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePrecision Effluent Control:\u003c\/b\u003e Upgraded gate valve plumbing enables micro-level output configuration, preventing the common \"clog and stall\" failures of cheap needle valves.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eProbe Integration Ready:\u003c\/b\u003e Securely houses standard monitor or controller probes directly in the primary acidic mix zone for absolute automation.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Quick-Connects:\u003c\/b\u003e Employs standard 1\/4-inch push-connect fittings for seamless integration into feed and effluent tracking lines.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Packed SPS Reef):\u003c\/b\u003e 120 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Mixed Reef):\u003c\/b\u003e 200 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Soft Coral\/LPS Display):\u003c\/b\u003e 250 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002193656,"sku":"OCT-CALR140","price":773.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/ea0a91eb54477d354516af888f6ff14f.jpg?v=1789092983"},{"product_id":"octo-cr200-calcium-reactor","title":"Octo CR200 Calcium Reactor","description":"\u003cdiv data-oe-version=\"1.2\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ch2\u003eReef Octopus VarioS CR200 8-inch Calcium Reactor\u003c\/h2\u003e\n\u003cp\u003eThe Reef Octopus VarioS CR200 (OCT-CALR200) is a high-performance solution for aquarists looking to automate the complex task of maintaining alkalinity, calcium, and essential trace elements. Quality, modern design, and DC controllability define the VarioS series, making it a premier choice for demanding reef systems. Unlike traditional AC-powered reactors, the CR200 uses the variable-speed VarioS-4 pump, allowing users to fine-tune the recirculation rate for optimal media dissolution.\u003c\/p\u003e\n\u003cp\u003eThe reactor employs a sophisticated reverse-flow design, forcing water upward through the media to maximize contact time and prevent \"channeling\" or dead spots. This ensures that every ounce of aragonite media is utilized effectively. With its built-in CO2 recirculating feature, the CR200 recovers unused gas to increase efficiency and lower the overall pH within the chamber more effectively. The unit is thoughtfully designed with a precision effluent control valve and quick-connect fittings, simplifying the setup and tuning process for consistent daily mineral delivery.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eControllable VarioS DC Pump:\u003c\/b\u003e Offers variable speed settings, a feed mode, and high-efficiency performance with a 5-year warranty. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReverse Flow Design:\u003c\/b\u003e Maximizes water-to-media contact while ensuring even dissolution of the aragonite. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive CO2 Tools:\u003c\/b\u003e Includes a built-in bubble counter and a dedicated pH probe holder (probe sold separately) for total chamber monitoring. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAuto Fill Feature:\u003c\/b\u003e Integrated bubble counter and gas recovery system reduce CO2 waste. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Construction:\u003c\/b\u003e Built with solid cast acrylic and 1\/4\" quick-connect fittings for a leak-proof experience. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Access Lid:\u003c\/b\u003e Designed for simple media refills and routine chamber maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Demand SPS Tanks:\u003c\/b\u003e Perfect for systems requiring high amounts of calcium and carbonate. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMedium to Large Reefs:\u003c\/b\u003e Rated for systems between 300 and 500 gallons, depending on bioload. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTech-Forward Hobbyists:\u003c\/b\u003e Those who prefer the quiet operation and micro-adjustability of DC-powered equipment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMinimalist Sump Spaces:\u003c\/b\u003e Compact footprint considering its high media capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002226424,"sku":"OCT-CALR200","price":866.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/9b94fd1f4222d9f4be068aa615a810bd.jpg?v=1789092984"},{"product_id":"octo-cr220-calcium-reactor","title":"Octo CR220 Calcium Reactor","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus CalReact 220 Controllable DC Calcium Reactor\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eCalReact 220\u003c\/b\u003e (SKU: OCT-CALR220) is a high-capacity, controllable aragonite-dissolving reactor system engineered to maintain absolute chemical balance for large, heavily stocked marine reef aquariums up to 500 gallons. In massive systems packed with fast-growing small polyp stony (SPS) corals, daily skeletal mineral consumption climbs exponentially, rendering manual liquid dosing expensive and erratic. The CalReact 220 replaces multi-part daily routines by continuously circulating aquarium water through its spacious 8.7-inch chamber alongside pressurized carbon dioxide (CO2​). This gas safely depresses the internal pH to an acidic level, gently melting crushed ancient coral media down into its raw, bio-available mineral forms.\u003c\/p\u003e\u003cp\u003eThe premium distinction of the CalReact 220 lies in its high-volume propulsion system: the controllable \u003cb\u003eVarioS 4 DC recirculation pump\u003c\/b\u003e. Operating at a safe 24V working voltage, this variable-speed pump utilizes a specialized pinwheel impeller, high-purity ceramic shaft, and a detached digital controller to refine internal flow dynamics seamlessly. Embodying an optimized \u003cb\u003ereverse-flow fluid layout\u003c\/b\u003e, the pump continuously pushes water up from the bottom grid. This uniform upward lift prevents heavy media columns from packing down into solid bricks or forming anaerobic dead spots. Hand-crafted from solid, optical-grade cast acrylic and finished with an easy-to-remove thumbscrew lid, this elite reactor offers unparalleled chemical stability for thriving hard coral displays.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eVariable Speed VarioS Pump:\u003c\/b\u003e Features multiple speed settings and feed-pause control modes, seamlessly integrating with third-party automation via an onboard 0–10V connection port.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Recirculation Engineering:\u003c\/b\u003e Traps and recirculates undissolved gas pockets within the upper neck structure, optimizing structural efficiency.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePrecision Effluent Control:\u003c\/b\u003e Upgraded gate valve plumbing enables micro-level output configuration, preventing the common \"clog and stall\" failures of cheap needle valves.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eProbe Integration Ready:\u003c\/b\u003e Securely houses standard monitor or controller probes directly in the primary acidic mix zone for absolute automation.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Quick-Connects:\u003c\/b\u003e Employs standard 1\/4-inch push-connect fittings for seamless integration into feed and effluent tracking lines.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Packed SPS Reef):\u003c\/b\u003e 250 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Mixed Reef):\u003c\/b\u003e 400 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Soft Coral\/LPS Display):\u003c\/b\u003e 500 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002259192,"sku":"OCT-CALR220","price":1027.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/ebec70b998f3833e1ce3226fb1f4ea1f.jpg?v=1789092985"},{"product_id":"octo-calreact-3000d-dual-chamber-calcium-reactor","title":"Octo CalReact 3000D Dual Chamber Calcium Reactor","description":"\u003cdiv data-oe-version=\"1.2\"\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003ch2\u003eReef Octopus CalReact 3000D Dual Chamber DC Calcium Reactor\u003c\/h2\u003e\n\u003cp\u003eThe Reef Octopus \u003cb\u003eCalReact 3000D\u003c\/b\u003e (SKU: OCT-CALR3000D, also recognized across legacy series as the SRO-CR3000D) is a high-capacity, dual-tower aragonite-dissolving filtration system engineered for large, densely stocked marine reef displays up to 580 gallons. In mature reef aquariums packed with small polyp stony (SPS) corals, mineral uptake can easily exhaust traditional liquid dosing regimens, spiking monthly maintenance costs and destabilizing water parameters. The CalReact 3000D automates mineral replenishment by continuously dissolving ancient crushed coral skeletons inside a highly controlled, acidic environment, adding bio-available calcium, carbonates, magnesium, and essential trace elements directly back into your water column.\u003c\/p\u003e\n\u003cp\u003eThe defining breakthrough of the CalReact 3000D is its \u003cb\u003eDual-Chamber Architecture\u003c\/b\u003e. Traditional single-chamber reactors discharge an effluent with an extremely low, acidic pH (often between 6.5–6.7) due to the heavy injection of carbon dioxide (CO2​). If left unbuffered, this acidic trickle can steadily depress your display tank's overall pH. The 3000D passes this raw acidic effluent through a secondary 7-inch media column \u003ci\u003ebefore\u003c\/i\u003e it leaves the system. This second stage naturally absorbs residual CO2​ and dissolves extra aragonite, neutralizing the solution and boosting output pH to protect your delicate marine livestock.\u003c\/p\u003e\n\u003cp\u003ePropelled by the high-torque, variable-speed \u003cb\u003eVarioS 4 DC recirculation pump\u003c\/b\u003e, this unit utilizes a specialized pinwheel impeller and a high-purity ceramic shaft. Operating on safe 24V current via a detached digital controller, the pump drives a \u003cb\u003ereverse-flow fluid layout\u003c\/b\u003e that lifts water upward from the base of the chamber. This steady pressure keeps heavy media beds in uniform suspension, completely avoiding the clumping, cementing, and anaerobic channeling that plagues flat-bottom reactors. Handcrafted from heavy-wall, optical-grade cast acrylic, the CalReact 3000D stands as the premier choice for pristine chemical stability in high-volume reef displays.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003epH Shielding Secondary Chamber:\u003c\/b\u003e Degasses excess carbon dioxide, boosting effluent pH while squeezing additional mineral yield out of your aragonite media.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eControllable VarioS 4 DC Pump:\u003c\/b\u003e Offers multiple precise speed profiles and standalone feed-pause delays. Features a 0–10V port for seamless integration with third-party automation networks like the Neptune Apex.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Gas Recirculation:\u003c\/b\u003e Captures undissolved gas pockets at the primary neck assembly, re-injecting them into the water loop to conserve your bottle supply.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePrecision Gate Valve Tuning:\u003c\/b\u003e Includes an industrial-grade effluent micro-gate valve to lock in precise, drift-free daily drip rates.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Quick-Connects:\u003c\/b\u003e Standard 1\/4-inch push-connect interfaces allow for clean plumbing management across feed and effluent paths.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Packed SPS Reef):\u003c\/b\u003e 300 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Mixed Reef):\u003c\/b\u003e 450 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Soft Coral\/LPS Display):\u003c\/b\u003e 580 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002291960,"sku":"OCT-CALR3000D","price":1027.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/94701d0eecd53f3a9788e9d140234bae.jpg?v=1789092987"},{"product_id":"octo-calreact-5000d-dual-chamber-calcium-reactor","title":"Octo CalReact 5000D Dual Chamber Calcium Reactor","description":"\u003cdiv data-oe-version=\"1.2\"\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003ch2\u003eReef Octopus CalReact 5000D Dual Chamber DC Calcium Reactor\u003c\/h2\u003e\n\u003cp\u003eThe Reef Octopus \u003cb\u003eCalReact 5000D\u003c\/b\u003e (SKU: OCT-CALR5000D, also recognized across legacy series as the SRO-CR5000D) is an ultra-high-capacity, dual-tower aragonite-dissolving filtration system engineered for large, heavily stocked marine reef displays and commercial systems up to 800 gallons. In massive reef aquariums packed with fast-growing small polyp stony (SPS) corals, mineral uptake can easily exhaust traditional liquid dosing regimens, spiking monthly maintenance costs and destabilizing water parameters. The CalReact 5000D automates mineral replenishment by continuously dissolving ancient crushed coral skeletons inside a highly controlled, acidic environment, adding bio-available calcium, carbonates, magnesium, and essential trace elements directly back into your water column.\u003c\/p\u003e\n\u003cp\u003eThe defining breakthrough of the CalReact 5000D is its \u003cb\u003eDual-Chamber Architecture\u003c\/b\u003e. Traditional single-chamber reactors discharge an effluent with an extremely low, acidic pH (often between 6.5–6.7) due to the heavy injection of carbon dioxide (CO2​). If left unbuffered, this acidic trickle can steadily depress your display tank's overall pH. The 5000D passes this raw acidic effluent through a secondary 8.7-inch media column \u003ci\u003ebefore\u003c\/i\u003e it leaves the system. This second stage naturally absorbs residual CO2​ and dissolves extra aragonite, neutralizing the solution and boosting output pH to protect your delicate marine livestock.\u003c\/p\u003e\n\u003cp\u003ePropelled by the high-torque, variable-speed \u003cb\u003eVarioS 6 DC recirculation pump\u003c\/b\u003e, this unit utilizes a specialized pinwheel impeller and a high-purity ceramic shaft. Operating on safe 36V current via a detached digital controller, the pump drives a \u003cb\u003ereverse-flow fluid layout\u003c\/b\u003e that lifts water upward from the base of the chamber. This steady pressure keeps heavy media beds in uniform suspension, completely avoiding the clumping, cementing, and anaerobic channeling that plagues flat-bottom reactors. Handcrafted from heavy-wall, optical-grade cast acrylic, the CalReact 5000D stands as the premier choice for pristine chemical stability in high-volume reef displays.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003epH Shielding Secondary Chamber:\u003c\/b\u003e Degasses excess carbon dioxide, boosting effluent pH while squeezing additional mineral yield out of your aragonite media.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eControllable VarioS 6 DC Pump:\u003c\/b\u003e Offers multiple precise speed profiles and standalone feed-pause delays. Features a 0–10V port for seamless integration with third-party automation networks like the Neptune Apex.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Gas Recirculation:\u003c\/b\u003e Captures undissolved gas pockets at the primary neck assembly, re-injecting them into the water loop to conserve your bottle supply.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePrecision Gate Valve Tuning:\u003c\/b\u003e Includes an industrial-grade effluent micro-gate valve to lock in precise, drift-free daily drip rates.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Quick-Connects:\u003c\/b\u003e Standard 1\/4-inch push-connect interfaces allow for clean plumbing management across feed and effluent paths.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Packed SPS Reef):\u003c\/b\u003e 400 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Mixed Reef):\u003c\/b\u003e 600 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Soft Coral\/LPS Display):\u003c\/b\u003e 800 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002324728,"sku":"OCT-CALR5000D","price":1259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/dfab0970d6c128b57af0ea30212477e7.jpg?v=1789092988"},{"product_id":"octo-cr-100-classic-calcium-reactor","title":"Octo CR-100 Classic Calcium Reactor","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus Classic CR-100 Calcium Reactor\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eClassic CR-100\u003c\/b\u003e (SKU: CR-CV-OCT-CR100) is an automated, highly efficient aragonite-dissolving reactor system designed to stabilize and supplement calcium, alkalinity, and essential trace elements in marine reef aquariums up to 150 gallons. Maintaining optimal ionic balance manually becomes a grueling task as hard stony corals (SPS and LPS) mature and expand. The CR-100 replaces the volatility of multi-part daily liquid dosing by using pressurized carbon dioxide (CO2​) to safely drop the internal chamber pH, melting crushed ancient coral skeletons back into their raw, bio-available mineral states.\u003c\/p\u003e\u003cp\u003eConstructed from premium, heavy-duty cast acrylic, the CR-100 relies on an advanced \u003cb\u003ereverse-flow fluid layout\u003c\/b\u003e. The integrated \u003cb\u003eAquatrance 1200 recirculation pump\u003c\/b\u003e continuously pushes acidic water from the bottom of the 4-inch chamber upward. This configuration ensures that the CO2​ gas remains completely dissolved and distributed, maximizing contact time with the aragonite media while preventing the substrate from packing together into a solid brick. Complete with a modular screw-off lid, a functional bubble counter, and an integrated probe holder, this compact workhorse is the definitive upgrade for low-maintenance coral growth.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAutomated Skeletal Supplementation:\u003c\/b\u003e Provides balanced ratios of calcium, carbonate hardness, strontium, and magnesium simultaneously.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAquatrance 1200 Recirculation:\u003c\/b\u003e Keeps the internal water loop moving consistently to eliminate dead zones inside the media column.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eRecirculating CO2​ Geometry:\u003c\/b\u003e Recycles unused gas pockets trapped inside the upper neck, minimizing overall CO2​ bottle consumption.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eProbe Integration Ready:\u003c\/b\u003e Port allows a standalone pH monitor or controller probe to monitor internal levels without risking leaks.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eEffortless Plumbing Taps:\u003c\/b\u003e Employs industrial-grade 1\/4-inch push-connect fittings for precise incoming feed and outgoing effluent tracking.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDemand Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand:\u003c\/b\u003e 75 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand:\u003c\/b\u003e 100 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand:\u003c\/b\u003e 150 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002783480,"sku":"OCT-CR100","price":438.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/9294e60bc0aa8696ced95ea338faae0e.jpg?v=1789093005"},{"product_id":"octo-cr-140-classic-calcium-reactor","title":"Octo CR-140 Classic Calcium Reactor","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus Classic CR-140 Calcium Reactor\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eClassic CR-140\u003c\/b\u003e (SKU: OCT-CR140) is an automated, highly efficient aragonite-dissolving reactor system designed to stabilize and supplement calcium, alkalinity, and essential trace elements in marine reef aquariums up to 200 gallons. Maintaining optimal ionic balance manually becomes a grueling task as hard stony corals (SPS and LPS) mature and expand. The CR-140 replaces the volatility of multi-part daily liquid dosing by using pressurized carbon dioxide (CO2​) to safely drop the internal chamber pH, melting crushed ancient coral skeletons back into their raw, bio-available mineral states.\u003c\/p\u003e\u003cp\u003eConstructed from premium, heavy-duty cast acrylic, the CR-140 relies on an advanced \u003cb\u003ereverse-flow fluid layout\u003c\/b\u003e. The integrated \u003cb\u003eAquatrance 2000 recirculation pump\u003c\/b\u003e continuously pushes acidic water from the bottom of the 5.5-inch chamber upward. This configuration ensures that the CO2​ gas remains completely dissolved and distributed, maximizing contact time with the aragonite media while preventing the substrate from packing together into a solid brick. Complete with a modular screw-off lid, a functional bubble counter, and an integrated probe holder, this compact workhorse is the definitive upgrade for low-maintenance coral growth.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAutomated Skeletal Supplementation:\u003c\/b\u003e Provides balanced ratios of calcium, carbonate hardness, strontium, and magnesium simultaneously.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAquatrance 2000 Recirculation:\u003c\/b\u003e Keeps the internal water loop moving consistently to eliminate dead zones inside the media column.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eRecirculating CO2​ Geometry:\u003c\/b\u003e Recycles unused gas pockets trapped inside the upper neck, minimizing overall CO2​ bottle consumption.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eProbe Integration Ready:\u003c\/b\u003e Port allows a standalone pH monitor or controller probe to monitor internal levels without risking leaks.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eEffortless Plumbing Taps:\u003c\/b\u003e Employs industrial-grade 1\/4-inch push-connect fittings for precise incoming feed and outgoing effluent tracking.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDemand Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand:\u003c\/b\u003e 100 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand:\u003c\/b\u003e 150 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand:\u003c\/b\u003e 200 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002816248,"sku":"OCT-CR140","price":531.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/d5c719e59e7fbdbf5dc4aea7ece2ac8a.jpg?v=1789093006"},{"product_id":"octo-cr-250pro-commercial-calcium-reactor","title":"Octo CR-250PRO Commercial Calcium Reactor","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus BioChurn CR-250PRO Commercial Calcium Reactor\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eBioChurn CR-250PRO\u003c\/b\u003e (SKU: OCT-CR250PRO) is an industrial-grade, large-scale external calcium reactor engineered to handle severe calcium and alkalinity demands in massive marine systems up to 1,000 gallons. When executing water quality management on a commercial scale, standard hobbyist reactors quickly fall short under dense biological coral loads. The CR-250PRO resolves this limitation by introducing an automated, high-capacity fluidizing column. By circulating raw system water through its spacious 10-inch chamber alongside regulated carbon dioxide (CO2​), it safely drops the internal pH to an acidic state, continuously melting down raw aragonite media into bio-available calcium, carbonates, magnesium, and essential trace elements.\u003c\/p\u003e\u003cp\u003eAt the heart of the CR-250PRO's elite performance is its proprietary \u003cb\u003ePower Churn\u003c\/b\u003e configuration. Traditional large-scale calcium reactors often allow heavy media substrate to compress, pack down, and solidify into cement-like bricks over time, creating toxic anaerobic pockets and choking flow. The CR-250PRO bypasses this entirely with a specialized internal fluidizing plate that guides incoming water into a uniform, rolling churn. This cyclonic lifting action is driven by a commercial-grade \u003cb\u003eBlaster series recirculation pump\u003c\/b\u003e built with a silicon nitride ceramic shaft to withstand abrasive mineral friction. Equipped with heavy-wall union connections, an integrated pH probe dock, and an auto-fill visual bubble counter, this commercial tower provides absolute water parameter stability for world-class aquatic displays.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Fluidization Matrix:\u003c\/b\u003e Keeps aragonite media in a constant, gentle suspension state to eliminate media cementing and internal channeling.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eBlaster Series Power Core:\u003c\/b\u003e Features premium internal components optimized for 24\/7 continuous operation with zero operational downtime.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Efficiency Loop:\u003c\/b\u003e Recycles trapped gas pockets collecting in the upper neck assembly, drastically expanding the lifespan of your pressurized CO2​ bottles.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAutomation Ready Probe Port:\u003c\/b\u003e Securely houses electronic pH controller probes directly in the primary mixing zone for reliable, automated solenoid control.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePressure-Sealed Structural Integrity:\u003c\/b\u003e Built with heavy-duty union adapters and a thick, gasket-sealed top lid flange ensuring 100% leak-proof external or cabinet deployment.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Packed Commercial SPS Display):\u003c\/b\u003e 500 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Mixed Facilities Displays):\u003c\/b\u003e 750 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Public Exhibit Soft Coral Display):\u003c\/b\u003e 1,000 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease contact us at\u003ca href=\"%5C%22mailto:support@coralvue.com%5C%22\"\u003e Support@coralvue.com\u003c\/a\u003e should you need commercial equipment to suit your specific needs.\u003c\/p\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002849016,"sku":"OCT-CR250PRO","price":2772.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/c7a977173f99c0851d8c1f19a37a0c10.jpg?v=1789093008"},{"product_id":"octo-cr-300pro-commercial-calcium-reactor","title":"Octo CR-300PRO Commercial Calcium Reactor","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus 300PRO Commercial Calcium Reactor\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003e300PRO Commercial Calcium Reactor\u003c\/b\u003e (SKU: OCT-CR300PRO) is a heavy-duty, high-capacity external mineral replenishment system engineered to sustain absolute water parameters in large-scale marine systems up to 2,700 gallons. When managing fragile stony coral ecosystems, public exhibits, or intensive grow-out facilities on a commercial scale, traditional hobbyist dosing regimens are rendered expensive, labor-intensive, and volatile. The CR-300PRO automates the delivery of bio-available calcium, carbonate alkalinity, strontium, and essential trace minerals. By circulating raw system water through its spacious 12-inch reaction tower alongside regulated carbon dioxide (CO2​), it safely depresses internal pH to an acidic state, continuously melting crushed aragonite media back into its structural elemental constituents.\u003c\/p\u003e\u003cp\u003eThe defining mechanical advantage of the 300PRO is its flagship \u003cb\u003eWater Blaster 10000 recirculation pump\u003c\/b\u003e. Operating at an industrial-strength 125 Watts, this high-volume water mover features a premium silicon carbide shaft and bearing assembly. This ultra-hard material barrier successfully resists the aggressive friction and scoring typical in a highly abrasive aragonite mineral suspension loop, guaranteeing non-stop runtime with zero frozen shafts. Embodying an optimized \u003cb\u003ereverse-flow engineering design\u003c\/b\u003e, the pump forces water upward through the 45-liter media column. This uniform upward hydraulic pressure keeps large quantities of heavy aragonite beds loose and moving, completely avoiding the clumping, cementing, and anaerobic channeling that plagues flat-bottom reactors. Finished with thick high-strength union plumbing joints, an accessible removable lid flange, and independent flow tuning valves, this commercial tower supplies elite chemical stability for world-class aquatic displays.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCommercial Scale Framework:\u003c\/b\u003e Effortlessly satisfies the high mineral draw associated with large-scale small polyp stony (SPS) displays and multi-tank coral installations.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eWater Blaster Power House:\u003c\/b\u003e High-efficiency, 2,600 GPH max-flow recirculation pump yields immense torque and massive head pressure parameters.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Recirculation System:\u003c\/b\u003e Captures and recycles pockets of undissolved gas collecting in the upper neck assembly, extending the operational lifecycle of your pressurized CO2​ bottles.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAutomation Ready Probe Port:\u003c\/b\u003e Securely houses electronic pH controller probes directly inside the primary mixing zone for reliable, automated gas solenoid execution.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePressure-Sealed Integrity:\u003c\/b\u003e Built with heavy-wall union connections and secure top-flange fastening hardware to ensure 100% leak-proof dry cabinet or external floor deployment.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Commercial SPS Facility):\u003c\/b\u003e 1,500 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Public Aquarium Exhibit):\u003c\/b\u003e 2,100 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Large Fish Hatchery System):\u003c\/b\u003e 2,700 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease contact us at\u003ca href=\"%5C%22mailto:support@coralvue.com%5C%22\"\u003e Support@coralvue.com\u003c\/a\u003e should you need commercial equipment to suit your specific needs.\u003c\/p\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002881784,"sku":"OCT-CR300PRO","price":4273.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/f739646a8c4cfabd99de5137f9664e49.jpg?v=1789093009"},{"product_id":"octo-cr-350pro-commercial-calcium-reactor","title":"Octo CR-350PRO Commercial Calcium Reactor","description":"\u003ch3 data-oe-version=\"1.2\"\u003eLarge Calcium Reactor Ideal for Public Aquariums, Fish Farms, and Aquaculture Centers up to 4000 Gallons\u003c\/h3\u003e\u003cp\u003eThe Reef Octopus 350PRO Commercial Calcium Reactor is developed specifically for the needs of the commercial sector including public aquariums, fish farms, and aquaculture centers up to 4,000 US Gallons. \u003c\/p\u003e\u003cp\u003eHigh-performance reverse flow design, superior craftsmanship, and efficient recirculation pump2-year pump warranty are just a few of the features of the Super Reef Octopus calcium reactors.  Our Commercial Calcium Reactors come with our very own high water volume Water Blaster pumps which come standard with Silicone Carbide shafts and bearings, this means no worries of moving parts freezing up causing broken shafts.\u003c\/p\u003e\u003cp\u003eEquipped with a pH probe holder to monitor PH inside the first chamber of the reactor and built-in bubble counters to monitor Co2 drip rates. to help you meet the challenging task of maintaining alkalinity, calcium, and trace elements, consider adding a Super Reef Octopus calcium reactor to your aquarium system. \u003c\/p\u003e\u003cp\u003eEquipped with the dependable and super-efficient Water Blaster 12500W recirculation pump, and features independent flow valves so the user can independently control the flow of media within the reactor.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Scale Framework:\u003c\/b\u003e Effortlessly satisfies the high mineral draw associated with large-scale small polyp stony (SPS) displays and multi-tank coral installations.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eWater Blaster Power House:\u003c\/b\u003e High-efficiency, 2,600 GPH max-flow recirculation pump yields immense torque and massive head pressure parameters.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCO2​ Recirculation System:\u003c\/b\u003e Captures and recycles pockets of undissolved gas collecting in the upper neck assembly, extending the operational lifecycle of your pressurized CO2​ bottles.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAutomation Ready Probe Port:\u003c\/b\u003e Securely houses electronic pH controller probes directly inside the primary mixing zone for reliable, automated gas solenoid execution.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePressure-Sealed Integrity:\u003c\/b\u003e Built with heavy-wall union connections and secure top-flange fastening hardware to ensure 100% leak-proof dry cabinet or external floor deployment.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Capacity Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Demand (Commercial SPS Display):\u003c\/b\u003e 2,000 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Demand (Public Aquarium Exhibit):\u003c\/b\u003e 2,800 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Demand (Large Fish Hatchery System):\u003c\/b\u003e 4,000 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease contact us at\u003ca href=\"%5C%22mailto:support@coralvue.com%5C%22\"\u003e Support@coralvue.com\u003c\/a\u003e should you need commercial equipment to suit your specific needs.\u003c\/p\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484002914552,"sku":"OCT-CR350PRO","price":5775.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/0adc3fbb18809d82799002531804cf0b.jpg?v=1789093010"}],"url":"https:\/\/www.blueearthaquariums.com\/collections\/calcium-reactor.oembed","provider":"Blue Earth Corals","version":"1.0","type":"link"}