The Reef Octopus 300PRO Commercial Calcium Reactor is designed to meet the demands of large-scale saltwater aquariums, fish farms, and aquaculture centers. Equipped with a high-performance reverse flow design and a recirculation pump powered by Water Blaster pumps using advanced materials like Silicon Nitride shafts and bearings, this reactor ensures durability and reliability. It features an integrated PH probe holder for precise monitoring of the first chamber's pH level and built-in bubble counters to monitor CO2 drip rates.