CPR Tumblers make adding chemical filtration media to saltwater and freshwater aquariums significantly easier and more effective than currently used methods. Instead of running media passively by placing it into a mesh bag, try ...
The SR2 is suitable for aquariums in the 10 to 60 gallon range. The unique design places the air inlet venturi prior to the pump impeller achieving an effect similar to needle-wheel skimmers in that the impeller chops the bubbles ...
The value of a biological filter depends on how well it performs the tasks of oxygenation, ammonia conversion and gas exchange on a long term basis. In the wet/dry filter, air and water mix as water trickles over an exposed filter...