1. Different living habits: The Mandarin fish prefers to live in rivers, reservoirs and lakes where there is plenty of grass and dissolved oxygen. Siniperca chuatsi especially likes to hide in the rocks or lush grass under the water.

2. The appearance is different: Mandarin fish is fat and thick, high and laterally flattened, with a large mouth, telescopic position and a slightly tilted slit, while the golden guppy is orange-red, with a pure white abdomen and reddish-yellow fins.

There is no difference between Siniperca chuatsi and gui fish, gui fish is an alias of Siniperca chuatsi, because the word "chuatsi" is more remote and homophonic with gui, so the writing is simplified.