Aquarium Solutions Bacto-Surge Biological Action Sponge Filter Black LG Glass Tops High HUFA levels maintains a

High HUFA levels maintains a great protein analysis

PhosGuard is highly porous for high capacity and bead-shaped for optimum water flow

Provides safety and cover for tank inhabitants

Kaytee feeds more hay to small pets than anyone else

Use Seachem's MultiTest Marine pH & Alkalinity to check pH and total alkalinity

Aquarium Solutions Bacto-Surge Biological Action Sponge Filter Black LG Glass Tops High HUFA levels maintains aThe 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 support significant levels of beneficial bacteria.