juvenile pumpkinseed or pond perch, curious look in planted freshwater nature aquarium, little predator fish

america animal aqua aquarium aquatic behaviour biotope cause clear coldwater common cosmopolitan curious dangerous disaster driftwood eco ecological ecology europe fauna fin fish fishkeeping free freshwater funny gibbosus global grey ichthyology introduced invasive juvenile lepomis little look macro mouth natural nature north ornamental perch perciformes pet planted pond predator protection pumpkinseed river space sunfish swim tank temperate underwater water weed widespread wild