colorful fish of aquarium

and animal animalia aqua aquarium aquatic aqueous biology bisk blue coldblooded colorful craniate creature critter ectothermic environment escallop eukaryotic fauna fin fins fish fishery fishing flipper flow flowing fluid freshwater gillbearing gills hydric hydrological individual limbless liquid living lymph metazoa metazoan multicellular nature nullah organism pisces pluricellular specie specimen stream vertebrate water watery wholly wight zoological zoology