Fairy fish is a common tropical ornamental fish, which is also called swallow fish or angel fish. Its body length is between 12-15 cm and its height can reach 20 cm. This kind of fish is native to South America, has a quiet personality, adapts to grow at the water temperature of 26-32 ℃, and has a certain sense of territory, so it is not suitable for polyculture with smaller fish.

Arowana is a small tropical fish of the family Percidae. It does not require high water quality, and has suprambranchial apparatus, which can breathe on the water surface. Because of this kind of fish's fierce temperament, it can only be mixed with docile fish, and there are many varieties, such as Blue Man Dragon, Yellow Man Dragon, Silver Man Dragon, Green Man Dragon and so on.

Three lakes cichlid is not a kind of fish, but a collective name for cichlid living in three great lakes in Africa. Among them, sapphire, red belly fire mouth, African phoenix, African prince, blue sky angel, etc. are about 10-15 cm long, and other fish are either bigger or smaller. Because there are many kinds of cichlid, it is also very beautiful to raise.

Pearl waistcoat is an ornamental fish native to Southeast Asia. Its length is about 10-13 cm, and its color is mostly blue-gray, with silver spots on its body. Living in the wild in an area with abundant aquatic plants, the temperament is mild. If you raise it, the water temperature is generally between 20-30 ℃, and the water quality requirements are not strict.

Colorful Brontosaurus is a smaller species of Brontosaurus, and its length is only 15 cm at most. Native to India, this fish is colorful and looks very beautiful, especially when swimming. Its feeding habits are miscellaneous, and it likes to eat live bait. It is not recommended to mix with small fish.