aquatic mollusk viviparous freshwater river snail, plankton feeder and algae eater moves from glass to sand substrate

adaptable adult algae amphibious animal antenna aquadesign aquarium aquatic background biotope bottom breed captive cleaner clear conditions controlled crawl dark decorative dirty driftwood easy eater ecology essential fauna feeder fishkeeping free freshwater gastropoda gill glass hairy 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 system temperate underwater useful viviparidae viviparous viviparus vulnerable water widespread yellow