1. Changing water regularly: Anchovies like to live in clean and refreshing water. When artificially cultured, they need to change water regularly to ensure clean water quality. Under normal feeding, water can be changed once every 3-5 days. If there is no filter, it is best to change the water once every three days. If the filter is installed, you can choose to change the water every 5-7 days. The frequency of changing water is not fixed, and the breeder can decide according to the number of fish and the change of water quality in the fish tank.
2. Control the amount of water change: Anchovies are sensitive to the change of water quality. When changing water for them, control the amount of water change. It is best to control the amount of water changed each time at one third of the total amount of water, so as to avoid discomfort caused by too much fluctuation of water quality.
3. Keep the water temperature stable: The adaptability of anchovies is not strong. When changing water, breeders should pay attention to the temperature difference between new water and old water not exceeding 2 ℃, otherwise they may have more stress reactions.
2. What water is the best for anchovies?Anchovies like weakly alkaline hard water best, and breeders can keep the PH value between 7.2 and 7.4. At present, most tap water in China is weakly alkaline, so breeders do not need to adjust it deliberately. However, tap water contains more chlorine, so breeders need to expose tap water to the sun for 2-3 days, so as to completely volatilize chlorine.