1, grass goldfish
It is the ancestor of goldfish, and no one has artificially changed its genes. In terms of physique, it is closer to the original fish, and it is much more sturdy and joyful than ordinary goldfish. Moreover, the grass goldfish is a cold-water fish. It does not need a heating rod to heat it all year round, and it is not picky about food. It only needs to feed ordinary feed.
2. koi fish
It is a kind of ornamental fish deeply loved by people. Because of its unique meaning and long breeding history, it is sought after by the majority of fish friends in the aquarium industry. The price varies with the appearance or size.
3. Mary fish
It is a small tropical fish with mild temperament. It is suitable for living in the water temperature of 23 to 28 degrees. It has strong vitality and can adapt to all kinds of water quality. It can also live well in a small fish tank. This fish is omnivorous, can accept all kinds of feed, and is not picky about food.
4, arowana
It is a small tropical ornamental fish belonging to the family Percidae, with a variety of species. The common dragons in the market are blue dragon and golden dragon.
5, tiger skin fish
This kind of fish is about five centimeters long and has four black vertical stripes from head to tail, which are as colorful as tiger skin, so it is called tiger skin fish. This fish is lively, swims quickly, looks good and has strong ornamental value.
6. Lei Long Fish
Lei Long fish gills are special, which can assist organs to breathe air directly, so the requirement for dissolved oxygen in water is not high. However, if there is no pump and no filtration, it is necessary to pay attention to whether ammonia nitrogen and nitrite exceed the standard, and it is also necessary to change water frequently.
7. Betta
Conquered many fish friends with enchanting tail fins. Betta fish is different from other fish in that it has auxiliary respiratory organs, which can breathe air directly in water and survive when the water is short of oxygen.
8, colorful skirt fish
Also known as the lamplight fish, it is an aurora variety of black-tailed fish, belonging to a small tropical ornamental fish, which is also a relatively hypoxia-tolerant species.
9. Zebrafish
It is a small tropical fish with a very solid skin, which can adapt to most water quality, and has a low requirement for water temperature and a fairly high survival rate.
10, guppy
Colorful body color, elegant and beautiful body shape, a wide variety, including dress, grass tail, metal, snake king, lace, galaxy, medusa and other strains, is a fish species introduced by many fish lovers.