ATI Hydro Sponge Filter #4 Bulk with New Gravel Base hikari wheat gen sinking medium and nitrification

and nitrification

visual light and heat in one bulb

Filter sets include one coarse pre-filter pad that removes large particulate matter

Carbon filter foams make replacement much simpler than using common granular carbon

ATI Hydro Sponge Filter #4 Bulk with New Gravel Base hikari wheat gen sinking medium and nitrificationThe ATI sponge filters are excellent biological as well mechanical filters that only need a source of air to operate. They are excellent for fry tanks because they won't suck up your babies! For aquariums up to 80 gallons. Sponge size 4 x 4. 75 Inches Comes with 5 inch lift tube. Bulk sponge filters are the same as the ones in the box without the packaging! New gravel base eliminates the step on the original sponge filters due to the height. Hydro