1. Cleaning of the fish tank: Because the growth of koi requires sunlight and other conditions, algae will also grow on the walls of the fish tank, so the fish tank or filter equipment must be cleaned regularly.
2. Fish tank water quality: The water quality for raising koi is very important. If the water quality is not good, it will cause various koi fish diseases. Koi is a type that can eat and poop, so the water needs to be changed once a day, with the amount being one-third to one-fifth. Do not change too much, as it may easily cause the ecological balance of the water quality in the tank to be unstable. Leftover food or koi feces in the fish tank should be cleaned up in time.
3. Naked tank culture: It is recommended to breed koi in a fish tank in a naked tank. If there are aquatic plants, the koi will eat them, and the remaining residue will not only destroy the water quality but also affect the appearance. If stones, etc. are put in, it will be difficult to clean and it will easily scratch the koi.
4. Water temperature requirements: You must pay attention to the control of water temperature when raising koi in tanks and in ponds. The most suitable water temperature for koi to eat is 23-28℃. When changing the water, be careful not to let the water flow too fast, and the water temperature should be similar to the water temperature in the fish tank.
5. Light: The growth of koi requires light, but the light should not be too strong. If it is for sterilization, be sure to turn it on for an hour or two at night.