Aquatop Clear Magic Water Polisher, 6 Pk.

Aquatop Clear Magic Water Polisher, 6 Pk. will purify your aquarium water right before your eyes. Forces organics in the aquarium to clump into larger molecules for easier pick-up by your aquarium filter. Helps keep the glass or acrylic walls of your aquarium algae free in between cleanings. Safe for freshwater and saltwater aquariums.