The Marineland Penguin 375 is the large hang-on-back filter in the Penguin line, made for aquariums up to 75 gallons. It runs water through mechanical, chemical and biological stages. Its signature part is the Bio-Wheel, a pleated wheel that turns in the outflow and...
The NICREW Slim Aquarium Filter is a small hang-on-back filter for nano and pico tanks from 1 to 5 gallons. It draws only 3W and moves up to 42 gallons per hour, and the flow is adjustable. The slim body is barely noticeable on the back of a small tank. Made for...
Marineland Black Diamond Premium Activated Carbon is loose carbon for the chemical stage of an aquarium filter. It removes odors, discoloration and dissolved impurities, leaving water clearer. It’s made from heat-activated, bituminous coal-based carbon and sized...
Penn-Plax standard airline tubing is the clear, flexible hose that carries air from an aquarium pump to an air stone, sponge filter, under-gravel filter or bubbling ornament. This roll is 25 feet long, enough to plumb a few tanks or redo a whole rack. Sizing...
AQUANEAT pre-filter sponges are foam sleeves that slide over a filter intake. They stop baby fish, shrimp and snails from being pulled into hang-on filters, canister filters and powerheads. You get six in a pack, so you can cover several intakes or keep spares for...