Corbicual sp Freshwater Clam 15 Pack

The Freshwater Clam is a living filter that helps keep your pond or aquarium water clear and clean. By removing uneaten food and detritus from the water column, the Freshwater Clam helps maintain water quality and lower nitrate levels. Like many freshwater bivalves, Corbicual sp. typically buries itself in the substrate. However, can live on bare bottom ponds and aquariums.