ATI Hydro Sponge Filter #4 Bulk with New Gravel Base hikari wheat gen sinking medium Carbon filter foams make replacement

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

Samples taken at six inches in depth have been proven to give a more accurate salinity reading than surface samples

A consistent pH reading is more ideal than frequent changes up or down

The UVA rays stimulate the animal’s appetite

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

ATI Hydro Sponge Filter #4 Bulk with New Gravel Base hikari wheat gen sinking medium Carbon filter foams make replacementThe 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