european perch, wild caught juvenile freshwater predator fish hiding in dense vegetation of hornwort

adaptable algae animal aqua aquadesign aquarium aquatic beast biotope bug caught ceratophyllum clear closeup colourful decorative demersum dense driftwood ecological ecology endemic eurasian european fauna filter fish fishkeeping fluviatilis free freshwater gravel green hide hiding hobby hornwort ichthyology inspiration instinct juvenile local macro natural nature orange perca perch percidae plant predator protection sand southern space stripe tank temperate underwater vegetation vulnerable water widespread wild