Aquatop Clear Magic Water Polisher Aquarium Water Conditioner - 30 Gal - 6 Pack

• 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.