for small goldfish to change water? It is best for small goldfish to change water every three days in summer. In summer, the water temperature is high, the fish stool and residual food are perishable, and the water quality deteriorates faster, so changing the water more frequently can ensure the water quality. It is better to change the water every seven days in spring and autumn. In spring and autumn, the temperature is more comfortable, and the water quality changes slightly slowly, so the water change time can be extended appropriately. The water can be changed every ten days in winter. If the water quality is good, the water change time can be extended appropriately. But if the water quality deteriorates, the water should be changed as soon as possible.
for small goldfish 1. If you choose tap water, you should first expose the tap water to the sun for three days. Exposure to the sun can remove chlorine in water, and can also play a role in sterilization.
2. When changing water, only one third of the water should be changed, and the amount of water should not be too much, because too much water can easily stimulate small goldfish.
3. The water should be changed in sunny weather, preferably at 7-10 in the morning or 3-4 in the afternoon. The temperature of the new water should be consistent with the temperature of the original cylinder as far as possible. When the temperature of the new water is too low, the heating rod can be used to heat it.
4. Avoid small goldfish when pouring new water, and the range of action should not be too large, so as to avoid internal injury to small goldfish. When pouring in new water, it is best to pour it slowly along the wall of the jar.
