Reef Octopus KS150 Nilson Kalk Reactor
The Reef Octopus KS150 Nilson Kalk Reactor provides a simple and efficient way to automate the supplementation of calcium and alkalinity in your reef system. Unlike traditional methods that require large, open vats of limewater, the KS150 utilizes a high-torque, low-RPM motor to gently stir calcium hydroxide (Kalkwasser). This process keeps the solution fresh and potent by minimizing exposure to air, which otherwise degrades Kalkwasser’s efficacy.
Designed for aquariums up to 210 gallons, the Reef Octopus KS150 helps maintain high pH levels while simultaneously precipitating phosphates. The reactor's innovative design ensures that undissolved particles remain at the bottom of the chamber, allowing only the clear, highly saturated liquid to be dosed into your sump. With its solid construction and 1/4-inch quick-connect fittings, this Nilsen-style reactor is a robust and economical addition to any advanced reef filtration setup.
Key Features
• Silent Motorized Stirring: Features a high-torque motor that rotates mixing blades at a slow speed to prevent stratification.
• pH Stabilization: Effectively raises and stabilizes aquarium pH levels while providing essential minerals.
• Airtight Design: Keeps Kalkwasser fresh by preventing atmospheric CO2 from reacting with the solution.
• Easy Refills: Large thumb screws allow for quick access to the seal-tight lid when adding fresh kalk powder.
• Durable Construction: Built with heavy-duty acrylic and PVC components for a long service life in marine environments.
• Phosphate Binding: Helps precipitate phosphates out of the water column as part of the dosing process.
Ideal For
• Mixed reef and SPS-dominant aquariums requiring stable calcium and alkalinity levels.
• Hobbyists struggling with chronically low pH levels who want an automated solution.
• Systems where floor space is limited and large limewater reservoirs are not practical.
• Advanced aquarists use a controller or timer to manage precision dosing intervals.
• Aquariums up to 210 gallons that need a cleaner alternative to two-part dosing.
*The Kalk Stirrer uses a 20W motor that has a lifetime of about 1500 hours. Please don’t run the unit continuously.
