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 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...
SOCK-IT PRE-FILTERS 7" filter sock holder; holder, bracket, inlet tube included Mechanical filtration made simple Easily add a filter sock to most any sump (vertical or euro-braced tanks) Tinted body and adjustable heigh...