Koi beard can grow if it is broken. This kind of fish has a beard, which is one of the symbols of koi. If not, it means that what you bought must not be koi. Koi is generally very large in size and belongs to large ornamental fish, which usually needs to be raised in a fish tank over 1 meter. Moreover, it has a large demand for oxygen, so attention should be paid to keeping oxygenation during feeding. Fortunately, as a wide-temperature fish, the requirements for temperature are not high, and the adaptability is also very strong, so it is easy to raise.

Koi have beards from hatching, but many small koi have short beards, so they are easily overlooked. If it is found that some fish look the same as koi fish but have no beard, then they are probably grass goldfish. In order to make profits, many unscrupulous merchants often pretend to be koi fish with grass goldfish. Therefore, when buying koi, you must buy bearded fish, which is the real koi.

The beard of koi fish does not need special maintenance, and koi fish is in a healthy state, so will the beard. When maintaining koi at ordinary times, we should pay attention to the maintenance temperature. The most suitable temperature for the growth of koi is between 20 degrees and 26 degrees. Also pay attention to the frequency of water change. In autumn and winter, the frequency of water change can be slower, and it is enough to change water once a week. Summer is sultry, koi is prone to lack of oxygen, so it is usually enough to change water once every two to three days.