Aquatop's premium Marine Nitro Rings are made of a uniquely shaped ceramic material which maximizes the surface area for beneficial bacteria to grow. Our Marine Nitro Rings help to eliminate harmful ammonia and nitrite levels in your aquarium water, while stabilizing the pH in all marine applications.
Unique media for marine biological filtration
Stabilizes PH for Saltwater Aquariums
Unique shape for maximum surface area exposure
Includes soft nylon mesh bag