Cleaner Snail

The Cleaner Snail is a common name applied to various small aquarium snails, particularly species in the family Ampullariidae or Viviparidae, which are valued in freshwater aquarium keeping for their role in consuming algae, decaying plant matter, and uneaten food, thereby helping to maintain water quality. In the wild, similar snails occupy freshwater habitats including rivers, lakes, ponds, and marshes across tropical and subtropical regions of Africa, Asia, and the Americas. These snails are typically herbivorous to omnivorous detritivores, grazing on biofilm, algae, and decomposing organic matter on substrate surfaces and aquatic vegetation. The shell form varies by species from globose to elongated, often with a pointed or rounded apex. Freshwater snails in this role reproduce readily under favorable conditions. While beneficial in aquaculture and aquarium contexts, several apple snail species (Pomacea) have become highly invasive when released into non-native environments, causing significant damage to rice crops and aquatic ecosystems in Asia, Europe, and the United States. Conservation status varies significantly among species; some native freshwater snails face threats from habitat degradation, water pollution, and competition from introduced species.