Do I have to change the water in the fish tank? What if we don't change the water?

Fish farming needs to change water regularly. If the water is not changed for a long time, a large amount of fish metabolic waste and leftover fish food will remain in the water, thus breeding bacteria. Moreover, the dissolved oxygen in the water will also decrease, which can not meet the needs of fish growth. Over time, fish will get sick or even die. If there is a good nitrification system and filtration system in the fish tank and there are some aquatic plants, the frequency of changing water can be reduced appropriately, but changing water is necessary. First, do you have to change the fish tank? In the process of raising fish, it is an important task to ensure water quality. Only in this way can fish grow healthily. Changing water regularly is an important measure to ensure water quality. Generally speaking, water needs to be changed regularly in the process of raising fish. If the water is not changed for a long time, the water quality will become very poor, and bacteria in the water will also breed, which may cause fish to get sick and affect their healthy growth.

But if the process of changing water is troublesome, some measures can be taken to reduce the frequency of changing water. There are three things to do. First, nitrifying bacteria. There must be enough nitrifying bacteria in the fish tank to establish a perfect nitrification system. This system can decompose some organic matter and nitrate, thus purifying the water and making it clear. Secondly, put a filter in the fish tank, or establish a better filtering system, and clean the filter cartridge regularly afterwards. In addition, some aquatic plants should be planted in the fish tank to release oxygen and optimize the ecological environment in the fish tank.

Second, how to change the water in the fish tank? As mentioned above, fish farming generally needs to change water regularly, but it is not necessary to change water. At this point, appropriate measures must be taken. If there is an excellent nitrification system and a powerful filtration system in the fish tank, and there are some aquatic plants in the water, then you can not change the water, and there will be no harm at this time. However, if all the settings and equipment in the fish tank are not perfect and the water is not changed regularly, it may lead to the gradual deterioration of water quality and the continuous decrease of oxygen in the water, which will do harm to the health of fish and even lead to death in the long run.