IceCap Kalk Mixer Reactor Small

IceCap Kalk Mixing Reactor Small 5" — KM-120 (IC-KM-120)

The IceCap Kalk Mixing Reactor Small (SKU: IC-KM-120) is an authentic, high-efficiency chemical water treatment system distributed by CoralVue to streamline and secure the addition of calcium hydroxide (Kalkwasser) into nano and mid-sized marine reef aquariums up to 100 gallons. Traditional kalkwasser dosing requires hobbyists to manually mix white powder into large top-off reservoirs or reservoirs. This not only consumes substantial space under the cabinet but exposes the solution to room air, where carbon dioxide immediately reacts with the lime water to form a useless calcium carbonate precipitate crust, rapidly reducing its potency. The IceCap KM-120 completely eliminates manual daily mixing by isolating the calcium hydroxide within an airtight, compact structural tower.

At the operational core of the Small Kalk Mixer is its advanced Adjustable Speed Magnetic Stirrer Motor. Standard kalk stirrers use traditional internal water pumps to mix the slurry, which quickly wear down or freeze up as calcium scales form along the impellers. The KM-120 utilizes a completely isolated external motor that drives a heavy-duty internal magnetic stir bar coated in reef-safe polymer. Hooked up to an external timer or controller, the mixer automatically turns on a few times a day to gently agitate the powder bed at the base, creating a highly concentrated, super-saturated fluid layout. When your fresh Auto Top-Off (ATO) pump pushes fresh water into the reactor base, it forces the clear, rich kalk solution out of the top gravity port and down into your sump, providing balanced calcium and alkalinity while maintaining a stable pH level of 8.3 inside your display.

Key Features

• Aggressive pH and Nutrient Support: Delivers a high-pH solution that binds free phosphates while neutralizing organic CO2​ inside the aquarium loop to maximize coral growth rates.

• Safe, Non-Pressurized Discharging: Employs a zero-pressure gravity flow design that limits structural strain, eliminating the messy floor leaks common with pressurized filters.

• Heavy-Wall Acrylic Engineering: Constructed from thick, durable clear cell-cast acrylic panels anchored securely onto a heavy, high-gloss solid PVC support plate.

• (Note: This retail package includes (1) Small Kalk Mixing Reactor vessel, (1) integrated magnetic drive motor, (1) internal magnetic stir bar, (1) low-voltage power supply, and push-fit plumbing adapters. Kalkwasser powder, feed dosing pumps, and automated timers are sold under separate product categories).

IceCap Kalk Mixing Reactor Sizing Matrix