PREORDER BASIS, LEAD TIME 1 WEEK.

• High efficiency sponge filer
• Use air pump or water to create water current in order to get the effect of filtering and to cultivate nitro bacteria
• Adopt precise bio-sponge with an enormous surface area
• Can absorb all dirty substances and cultivate nitro bacteria, which are responsible for the quick decomposition for harmful substances
• Ideal for breed of discus, dwarf cichlid, guppy, killifish etc
• Can help filtering in any tank or naked sand (absence of sand)