The koi will not eat the small koi, because they will not eat the same kind of fish under normal circumstances, except when food is very scarce. But the koi may bully the small koi, because the nature of koi is like this, so try not to raise the big koi and the small koi together.
small koi 1. Water temperature: The constitution of small koi is relatively weak, and it likes relatively high water temperature. The breeder can control the water temperature at 23 ℃. It is better to turn on the heating rod in the morning and evening to keep the temperature constant, so as to ensure that the change of water temperature in the fish tank will not exceed 1 ℃.
2. Water quality: Small koi likes fresh water quality. It is better for the breeder to change the water every two days. The amount of water changed each time should not exceed one quarter. The temperature difference between the new water and the old water should not exceed 1 ℃.
3. Feeding: The feeding habits of koi are miscellaneous, so most of the small koi can be eaten. The breeder can feed some food such as shrimp eggs or red worms, and some synthetic feed. If the small koi is small, the pellet feed can be crushed before feeding. The metabolism of small koi is strong, so it is better for the breeder to feed it 2-3 times a day, and the amount of each feeding can be finished within 5 minutes.
4. Oxygen: The demand of small koi for oxygen is also relatively large. It is better for the breeder to install an oxygen pump in the fish tank to ensure sufficient dissolved oxygen in the water.