{"product_id":"octo-reef-sump-15","title":"Octo Reef Sump 15","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus OCTO OS-15A Premium Acrylic Reef Sump\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eOCTO Sump 15\u003c\/b\u003e (Model No: OS-15A) is a premium, high-density acrylic filtration basin meticulously designed to bring elite organizational architecture and mechanical efficiency to space-conscious marine reef aquariums. Many small cube setups and nano reef tanks struggle with limited under-cabinet areas, leaving owners to piece together basic plastic storage tubs or custom glass tanks that leak or fail to regulate water depths. The OS-15A bridges this divide, providing a compact 15x15 inch command center crafted from solid machine-cut sheet acrylic that unifies your mechanical, biological, and chemical filtration processes.\u003c\/p\u003e\u003cp\u003eDespite its space-conscious footprint, the OS-15A is packed with features designed by hobbyists, for hobbyists. Raw drain water entering the sump routes straight into a specialized \u003cb\u003ebubble-diffusing intake chamber\u003c\/b\u003e. This compartment features a form-fitting acrylic cover plate that dampens acoustic water noise, stops micro-bubbles from migrating into the display, and controls corrosive under-cabinet salt creep. For mechanical filtration, a built-in 4-inch filter sock seat holds standard media socks for heavy debris capture. Recognizing the trend toward automation, the structural dividers are cut out to accept the Klir Drop-In Automatic 4-Inch Fleece Filter. This gives you the option to bypass manual sock washings entirely for months of hands-free operation.\u003c\/p\u003e\u003cp\u003eThe center of the sump houses a spacious, dedicated protein skimmer and reactor bay governed by an \u003cb\u003eadjustable weir overflow gate\u003c\/b\u003e. By loosening two thumbscrews, you can shift the operational water column from 5.1 up to 9 inches deep. This allows you to lock in the exact operational immersion height required by your skimmer's venturi throat, ensuring optimal foam generation without needing to purchase an aftermarket riser shelf. Flanked by an isolated return pump compartment and a built-in 1.5-gallon freshwater top-off reservoir, this robust, hand-fused workhorse serves as a sleek and functional foundation for high-end nano reef systems.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndustrial Structural Assembly:\u003c\/b\u003e Heavy cast acrylic sheets are welded together by hand with seamless solvent joints to avoid warping, structural bowing, or hairline leaks.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eDynamic Skimmer Calibration:\u003c\/b\u003e Eliminates fixed-baffle restrictions by giving you immediate manual control over the skimmer compartment's working water level.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIntegrated ATO Storage:\u003c\/b\u003e Includes a dedicated 1.5-gallon reservoir with an evaporation lid to keep your automatic top-off supply clean and nearby.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eAnti-Siphon Isolation:\u003c\/b\u003e The return pump chamber sits safely partitioned away from shifting water levels, ensuring stable automated freshwater replenishment.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePolished Finishing Bevels:\u003c\/b\u003e All exposed edges feature precision machined profiles to prevent finger pinches or wire abrasions during regular equipment scrub-downs.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEquipment Recommendations\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCompatible Protein Skimmers:\u003c\/b\u003e Reef Octopus eSsence S-130, Classic 110SSS, Classic 110-S\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCompatible Return Circulation Pumps:\u003c\/b\u003e Reef Octopus Aquatrance 2000, VarioS 2\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eCompatible Automatic Mechanical Filters:\u003c\/b\u003e Klir Fleece Filter Mat Di-4\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Reef Octopus","offers":[{"title":"Default Title","offer_id":50484003373304,"sku":"OCT-OS15A","price":375.36,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/be8720a2df76ddafff0aa4d7c8d266a1.jpg?v=1789093027","url":"https:\/\/www.blueearthaquariums.com\/products\/octo-reef-sump-15","provider":"Blue Earth Corals","version":"1.0","type":"link"}