It depends on what fish and shrimp.

　　Small shrimps (such as giant shrimps, crystals, cherry blossoms, bees) can only be mixed with small and docile fish, but even the fishes of the family Lampetraceae will attack the shrimps when they molt, so a shrimp house is necessary. When the shrimps molt, they will hide and wait until the new shells are hard before coming out.

　　Cherry shrimp or tennis shrimp will do. Cherry shrimp is only 2 to 3 yuan, and tennis shrimp is about 20 yuan.

　　Large shrimps (such as the sky) are crayfish, which are close to the spicy crayfish we eat. The food chain itself is full of small fish and shrimps, which are carnivorous, so small fish are raised with it, and fish is feed.

　　If it is a haystack, goldfish or small fish (swordfish, lamp, snout, etc.) can be kept, and there is no problem with short carvings. Generally, many fish over 10CM are omnivorous.

　　Expand information

　　Ornamental fish refers to fish with bright colors or strange shapes with ornamental value. They are distributed all over the world, and there are more than thousands of varieties. Some live in fresh water, some in seawater, some from temperate regions and some from tropical regions. Some are famous for their gorgeous colors, some for their strange shapes, and some for their rarity. In the world ornamental fish market, it is usually composed of three major strains: temperate freshwater ornamental fish, tropical freshwater ornamental fish and tropical seawater ornamental fish.

　　kind

　　There are 30,000 ~ 50,000 species of fish in the world, among which there are 2 ~ 3,000 species of marine fish and freshwater fish for viewing, but only about 500 species are actually commonly raised and common. There are mainly the following categories:

　　Tropical fish: Cyprinidae, Cyprinidae, Cicadellidae, Percidae, Loach, Siluridae, etc.

　　Arowana: an ancient fish belonging to tropical fish.

　　Colorful angelfish: cichlids in tropical fish.

　　China Goldfish: This is China's "national quintessence", but many new varieties have been cultivated abroad.

　　Koi fish: It is cultivated in many countries, but Japanese varieties are the best.

　　Marine fish: There are many kinds, and only a few hundred can be kept in aquariums.

　　Other fish: cold water fish and soda water fish.