Thai lion goldfish is a common species of goldfish. Unlike most goldfish, which must live in shallow water, Thai lions can adapt to the deeper water environment. Compared with traditional goldfish, Thai lion has a higher back, a more extended tail, a head similar to Lanshou, changeable colors and beautiful appearance.

Parrot fish is a kind of hybrid ornamental fish, which is the offspring of purple red fire mouth and red devil. Because it is two species, it has no reproduction ability and has certain physiological defects. However, the fiery red color and lovely shape are still deeply loved by people, and it is necessary to keep high oxygen if you raise them.

Map fish is a large ornamental fish, which is native to South America. It is not only beautiful in appearance, but also edible. It generally lives in the middle and lower layers of water, and its requirements for water quality are not high. As a tropical fish, it must live in an environment of 22-32 ℃, and at the same time, it needs enough oxygen to ensure breathing.

Lucky fish, also known as warships, is a larger fish in the family Percidae. It lives in the water area of 2 meters in the wild, so it should have a certain water depth for artificial breeding. This kind of fish has lax requirements on water quality, and can live in medium or weakly acidic water bodies. Generally, it feeds on live fish, shrimp meat, water earthworms, etc.

Arowana is a very old primitive freshwater fish, with a body length of about 50-65 cm and a life span of several decades. Its temperament is fierce, and it usually feeds on fish, shrimp and insects. There are many kinds of fish, such as Yinlong, Jinlong, Honglong, Qinglong, etc. No matter which kind of fish has certain requirements for water depth.