freshwater temperate snails, possibly physa fontinalis climbs with its foot on shell of possibly pisidium amnicum

adaptable airbreathing amnicum amphibious animal antenna aqua aquadesign aquarium aquatic background biotope bladder bright captive clam cleaner clear climbs common conditions controlled crawl creeping dark decorative dirty easy eat ecology essential european fauna fishkeeping fontinalis foot freshwater gastropod gastropoda greater helper hobby its keep local macro mollusc mollusks mussel natural nature peaclam physa pisidium possibly protection pulmonate river shell small snail snails specimen substrate temperate underwater useful water wild yellow