Turtle And Koi Fish Swimming Together In Pond

turtle swimming algae fish aquatic koifish carp amphibian limnology pond dirty water ichthyology fresh water ripples koi herpetology reptile water animal wild animals organism birds eye view habitat nature medium shot pets tranquil tranquility coinhabitation biology amniote marine coexist japan overhead serenity aqua tracking live peace real time serene behaviour together japanese science natural coinhabit