chinese sleeper, juvenile freshwater fish species in nature aquarium, dangerous and highly adaptable invasive predator

adaptable amur animal aqua aquaculture aquarium aquatic asia asian biotope bug chinese clear closeup colourful cosmopolitan dangerous deathly decorative east ecology endemic european far fauna fish fishkeeping free freshwater glenii gray green grey highly hobby insta invasive juvenile line natural nature odontobutidae perccottus predator river rotan sleeper southern space species tank temperate template threat underwater water widespread wild