The Bio Churn Oct BC120I Reactor is an innovative filtration solution designed for saltwater reef aquariums. This reactor employs a unique method of fluidizing biopellet media without direct pressure, creating a cyclone-like motion that suspends the pellets in water to maximize their effectiveness at removing phosphates and nitrates from your tank. The BC120I model is an in-sump variant, featuring an integrated Aquatrance pump that ensures efficient flow through the reactor while maintaining easy maintenance. It offers ample surface area for beneficial bacteria to colonize, ensuring extended contact between aquarium water and biopellet media for optimal nutrient reduction. This product is ideal for reef enthusiasts with mid-sized setups up to 200 gallons who seek a reliable way to maintain pristine water conditions.