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...

BACTO-SURGE HIGH DENSITY FOAM FILTER

The Difference Is In The Quality Of The Foam Sponge. Hikari Aquarium Solutions Bacto-Surge Foam Filter Employs The Highest-Quality Foam Sponge They Could Source To Provide Outstanding Mechanical And Biological Filtration. Extreme Foam Density Allows For Greater Surface Area Per Square Inch To Suppor...

Hiker USA - Becton-Surge Sponge Filter . Aquarium: Submersible Filters Mechanical and biological filter for: Nano tanks, Smaller FW Aquariums, Breeding Environments, Fry holding tanks, Quarantine applications, Use with slow moving fish like discus, Polishing of marine aquariums. large 5. 75x6. 25 in...