sunbleak shine silver side and swim in biotope aquarium, dwarf freshwater fish, highly adaptable animal

leucaspius delineatus belica moderlieschen cyprinidae european europe river adult temperate slender body small biotope tank coldwater moderate active aquarium sensitive endemic water clear pet aquatic wood underwater weed decorative fish gravel local native wild grey fauna widespread enduring space controlled conditions explore fishkeeping litter ecology ecosystem nature protection dwarf captive ichthyology research glass refraction sunbleak shine silver side swim freshwater highly adaptable animal show natural behaviour blurred aquadesign background shallow dof beauty concept