Hikari Bacto-Surge Sponge Kit Fish & Aquatic Filter For more than 130 years the Japanese company Hikari has been researching natural habitats and breeding ornamental fish to produce premium species-specific aquatic products. Sparkle up your tank with Hikari Bacto-Surge. This highly porous sponge maximizes bacterial action and its increased surface area supports maximum bacteria colonization. Hikari Bacto-Surge is made of a soft sponge material that is easy to clean and designed for long life.
