As the question , ? Mandarin fish i.e. ? Mandarin fish ? , guppy ?

True perch family Percichthyidae Siniperca genus Siniperca fish

The following picture shows ? Siniperca chuatsi, ? is also known as gui fish, perch gui, ao hua fish, sow shell

The fish is ferocious and carnivorous, feeding on other fish. Generally living in still water or slow flow with lush aquatic plants, it tends to swim to deep water in winter to overwinter.