Goldfish is one of the traditional ornamental fish in China. It has been cultivated for more than 1700 years. As a eurythermal fish, it has a mixed diet, so it is very easy to raise. It is usually recommended that novices raise some common varieties, such as grass gold, dragon eye, lion head and so on, do not choose some rare and unpopular goldfish, although it looks good, but it is very troublesome to raise.
guppy is a common small tropical ornamental fish, its tail is very large, at the same time colorful, like a peacock. This kind of fish is relatively easy to raise, because compared with other tropical fish, it can tolerate low temperatures of 16 degrees Celsius, but it is better to control the temperature within 20-30 degrees Celsius, so that the state of raising will be better.
Koi carp is a large fish, the general fish tank can not be raised, as the inheritance of carp characteristics of fish, its vitality is particularly strong, so it is relatively easy to raise. However, it should be noted that this kind of fish still has certain requirements for the oxygen content of the water body, so it is better to prepare an oxygen pump to oxygenate it every day.
Zebrafish is also a small tropical fish, many kinds and colors, very good-looking, and easy to raise. This kind of fish has a mild temperament, will always swim in the tank, the water quality requirements are not high, the temperature can be maintained above 20 degrees Celsius. You can put some pebbles in the tank to help make the water clear.
