Hikari Usa Inc. - Bacto-surge Sponge Filter. Aquarium: Submersible Filters Mechanical And Biological Filter For: Nano Tanks, Smaller Fw Aquariums, Breeding Environments, Fry Holding Tanks, Quarrantine Applications, Use With Slow Moving Fish Like Discus, Polishing Of Marine Aquariums. Large 4x4. 5 In Up To 75 Gal
- Works Well For Use In Freshwater Or Marine Applications.
- Highly Porous Sponge Maximizes Bacterial Action.
- Increased Surface Area Offers Maximum Bacteria Colonization.
- Soft Sponge Material Offers Easy Cleaning.
- Sponge Designed For Longer Life.
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