Note these matters when raising koi fish:

1. The most suitable water temperature for koi fish is 20~25℃. When the temperature drops suddenly or increases by 2~3℃, it is easy to get sick; When the temperature reaches 7-8°C, it will crawl on the bottom of the water and will not eat or move; if the temperature change is larger, the koi fish will even die immediately.

2. Koi fish need sufficient oxygen and are suitable for living in slightly alkaline, low hardness. in a water environment.

3. Do not put too many decorations in the aquarium, so as not to hurt the body of the koi fish.