1. guppy. Peacock fish has strong vitality and low requirements for the environment. As long as the water temperature is not lower than 15 degrees, it generally does not die. Breeding is easy. If you buy adult fish, your pair of adult fish can have dozens to hundreds of offspring in one month, and the price is low, usually ranging from one to ten yuan, depending on the species. This is the best choice for novice fish farming. Peacock fish has a mild temperament, can be mixed with mild small and medium-sized tropical fish, is usually lively and active, and has a short life. Peacock fish is an omnivorous small fish, and its adaptability to the environment is very tough. Peacock fish is very adaptable and lives well in an aquarium without temperature regulation and inflation equipment. It can tolerate low temperature of 15℃ and dirty water, and the most suitable growth temperature is 22-24℃, and it likes slightly alkaline water. Water with hydrogen ion concentration of 39.81-63.9nmol/L and pH value of 7.2-7.4 can also adapt to neutral properties.
2. koi fish. Koi fish is very easy to raise, so-called lazy fish. Body-building, colorful, varied patterns, swimming style, with high ornamental and breeding value. Its body length can reach 1-1.5 meters, and its life span is extremely long. It can live for 6-7 years (according to legend, there is a 2-year-old koi fish), which means good luck. It is said that it can bring good luck to the owner, and it is a popular feng shui fish and ornamental pet. It is most suitable for fish farmers in family fish tanks or small ponds. Koi fish has a strong adaptability to the environment, and the adaptive temperature is 2 ~ 3℃. But it can't resist the sharp change of water temperature. When the temperature suddenly drops or rises by 2 ~ 3℃, it is easy to get sick. The most suitable water temperature for living in koi fish is 2 ~ 25℃. In this water temperature, koi fish is active in swimming, with strong appetite, strong physique and bright colors.
.3. Zebrafish. Zebrafish is gentle, small and exquisite, and swims in the aquarium almost all day. Easy to raise, and can be mixed with other kinds of fish. The feeding water temperature is 2 ~ 23℃, and it can still survive when the water temperature is 11 ~ 15℃, and the requirements for water quality are not high. When raising daily, put some pebbles at the bottom of the aquarium to make the water clear.
4. Kissing fish. Lateolabrax japonicus is often used as an edible fish in its country of origin. Its requirements for water quality are not strict, and its gregarious nature is not obvious. Before laying eggs, the male fish will use the bubbles generated by breathing on the water surface as a floating nest.
5. Pearl vest. It is best to choose an aquarium over 8CM for raising pearl fish. Pearl color is not strict with water quality. It grows well under the condition of low temperature and low oxygen. Pearl fish is mild in temperament and can be mixed with other species of tropical fish.
You can also raise fish such as peacock, tiger skin, Dutch phoenix, swordfish and Mary, which are small and easy to raise. In a general fish tank, you can put a scavenger. They like to eat fish food scattered on the bottom floor to keep the fish tank clean. It's very nice to plant some aquatic plants ... Extended information
There are 3, to 5, species of fish in the world, including 2, to 3, species of marine fish and freshwater fish, but only about 5 species are generally raised and common. 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. Reference Resources Ornamental Fish-Baidu Encyclopedia