●Adopt precise bio-sponge with an enormous surface area. ●It can adsorb all dirty substances and to cultivate nitro bacteria, which are responsible for the quick decomposition of harmful substances. ●Ideal for breed of discus, dwarf cichlid, guppy, killifish...etc. ●It can help filtering in any tank of naked tank(no sand in the tank).
●Use air pump or submersible pump to create an water current, in order to get the effect of filtering and to cultivate nitro bacteria.
SF-03 Material: Sponge Color: Black Total Length: 20cm/7.87inch Sponge Length: 16cm/6.30inch Sponge Diameter: 6cm/2.36inch