Fish generally can not use pure water. Because the oxygen content in pure water is relatively low, there are few microorganisms in the water, the hardness of the water is very low, almost to 0, and the water itself is weakly acidic. Therefore, it is not suitable for fish to survive. And the cost of pure water is relatively high, which is not a good choice for fish farming.
But if you raise fish that like to live in soft water, you can use pure water. However, instead of using a single pure water, the hardness and alkalinity of ordinary water are reduced by mixing pure water.
If you want to improve the water quality, you can use the insolation method, the biological method, the water changing method, the machine method, and so on.
1. Exposure method: There is a large amount of chlorine in ordinary water, which will have a negative impact on the growth of fish. When feeding, chlorine in water can be treated by exposure to the sun.
2. Biological method: a proper amount of aquatic plants such as aquatic plants or river snails can be put into the fish tank when raising fish. Aquatic plants and snails can play a role in purifying water quality.
3. Water exchange method: Water exchange can ensure the cleanliness of water. By Chan that water, the oxygen content in the wat can be maintained.
4. Machine method: When raising fish, you can also install filters, oxygen pumps and other instruments in the water. These devices can effectively improve water quality.
