mollusk viviparous freshwater river snail, plankton feeder moves on glass and feeds on green algae in sand substrate bottom

adaptable adult algae amphibious animal antenna aquadesign aquarium aquatic background biotope bottom breed captive cleaner clear conditions controlled crawl dark decorative dirty driftwood easy ecology essential fauna feeder feeds fishkeeping free freshwater gastropoda gill glass green headshot helper hobby keep local macro mollusc mollusk mouth moves mussel natural nature operculum overgrown plankton protection river sand shell snail space specimen stripe substrate temperate underwater useful viviparidae viviparous viviparus vulnerable water widespread yellow