1, grass goldfish: Goldfish is common ornamental fish, kind has a lot of, grass goldfish is the most primitive breed that raises best. Its requirements for water quality are not strict, and its adaptability is very strong, and its body length can reach 30-50 cm. However, because they are kept in fish tanks, their growth is often limited, so they will not grow so big.
2. Zebrafish: Zebrafish is a small tropical fish with a body length of only 4-6 cm. It has a spindle-shaped body, olive back, blue longitudinal stripes on the side of the body, and a long tail fin. This kind of fish is mild, small and exquisite, and does not require high water quality, so even if the water quality is poor, it can be kept alive.
3. Manlongyu: Manlongyu is a small fish of the family Gourami. It has many species and does not have strict requirements for water quality. Moreover, it can survive in water with low dissolved oxygen because of its suprabranchial organ. Its feeding habits are more miscellaneous, and the character is very ferocious, generally do not carry out polyculture, life span is usually about three years.
? If you want to improve water quality, you can raise some scavengers, which can eat the residual bait scattered on the bottom of the water, so as to avoid polluting the water quality. In addition, you can also raise some algae-eating fish, such as black line flying fox, moss rat, elf fish and so on, which can eat algae on the tank wall and improve the overall ornamental value.
