common roach, captive wild fish in european temperate southern buh river planted biotope aquarium, highly adaptable

rutilus cyprinidae endemic common natural pungitius gasterosteidae potamogeton crispus aqua behaviour search biotic animal algae fishkeeping water clear clearwater coldwater underwater weed closeup wild caught gravel sand local fish tank omnivore predator decorative ecology threat fauna driftwood widespread led aquadesign nano swim wildlife controlled conditions pet ecosystem organic pollution ecodesign glass refraction shallow dof