several days, the small goldfish specifically changes the water several days, must look raises the environment, the water temperature as well as the season decides. Generally speaking, when the water temperature is 20 C, the water can be changed every 4-5 days. If the water temperature is higher than 20 C, the water needs to be changed every 3-4 days. In summer, when the temperature is high, the water quality will deteriorate faster, and the breeder needs to decide the frequency of water change according to the water quality in the fish tank. In autumn and winter, the appetite and activity of goldfish will be reduced, and the frequency of changing water can also be reduced, once every 7 days. When winter is cold, the deterioration of water quality will slow down, and breeders can change water every 15 days or so.
1, frequently change water: small goldfish to keep water clean and refreshing, it is necessary to frequently change water, breeders can regularly and quantitatively change water, can also be based on the water quality in the fish tank to decide whether to change water.
2. Install the filter: In addition to changing the water frequently, the breeder can also install the filter, which can not only avoid the discomfort to the goldfish caused by changing the water too frequently, but also allow the nitrifying bacteria in the fish tank to grow in large quantities.
3. Clean up the feces and residues: When feeding at ordinary times, the goldfish will have food residues and feces left in the tank. The breeder can fish them out in time after feeding, which can also keep the water clean and refreshing.
