Aquarium Technology Hydro-Sponge Pro III Premium Reticulated Foam Sponge Filter for Aquariums up to 40 Gallons

The Hydro-Sponge Pro series is a sponge filter workhorse. The “reticulated foam” is heavy duty, extremely porous and stiffer than our standard sponges, which allows even greater colonization and mechanical filtration using higher flow rates without clogging. This is serious filtration. These units have the same quality design and function as the standard Hydro-Sponge, but have the heavier constructed foam.The two key factors that differentiate this product are the reticulated foam sponge and its ability to withstand higher flow rates without damage to the foam.Hydro-Sponge filters stand tall over the competition with superior construction, quality materials, modular design (for easy expansion), and affordable pricing. While other sponge filters require suction cups that quickly fail ,or flimsy bases that allow the unit to fall over into the gravel or sand, the Hydro-Sponge filters are free standing with a heavy base that locks securely in place, but is easy to unlock if needed and is raised to allow sufficient space so that there are no dead areas between the aquarium floor and the filter.Our quality design brings the sponge filter to a whole new level as a serious filtration system that outperforms undergravel biological filters and goes toe to toe with any other filtration system. Breeder tanks, shrimp and invertebrates, tanks on the go, the need for quick bio-cycling - are all obvious applications for sponge filters, but many hobbyists are finding that the Hydro-Sponge is an excellent filtration alternative for any aquarium set up.This small but powerful submersible filter requires no external equipment or hanging reservoir, and can use an existing air pump or powerhead setup to achieve the gentle-yet-effective vacuum effect it uses to work.