Koi will not recognize its owner. Koi fish do not have the ability to recognize their owners, and they will not know their owners for how long they are kept. However, after feeding it at a fixed time every day and forming a habit, once it finds a breeder coming to feed it, the koi will form a conditioned reflex and actively float its head to wait for food.

Notes on raising koi:

1. Environment

Choose a suitable fish tank according to the size of the koi. Koi is suitable for raising in a naked tank , if the bottom sand or aquatic mud is laid, it will easily make a mess. You can put some pebbles so that it cannot arch and can also play a certain filtering role.

2. Feeding

Koi digest very quickly and are almost never full. They usually eat as much as they want, but this is not good for the health of koi and they can easily get enteritis. For diseases, feeding 2-3 times a day is sufficient, and feeding must not be too frequent.

3. Change the water

When raising koi, you must remember to change the water regularly. It is recommended to change it once a week. If the water is not changed for a long time, values ​​such as ammonia nitrogen and nitrite will appear. problem, which may lead to koi poisoning.