Two Little Fishies PhosBan Reactor 550

The Phosban Reactor 150 has become a staple amongst most aquarists who keep SPS corals. To meet the demand of larger tanks and reduce the number of Phosban Reactors needed, TLF has created the Phosban 550 reactor for aquariums up to 600 gallons. It can be mounted hanging on the back of the aquarium or below the aquarium.