in a two-meter fish tank? If you want to change the water in a two-meter fish tank, you need to prepare the water first. If you use tap water, you'd better dry it for a few days in advance so that the chlorine in the water can volatilize. Then the water in the fish tank should be pumped out. If the fish tank is relatively large, a water pump can be used. Some finished tanks will specially set aside a drain valve, which can also be used to drain water. After some of the water has been drained, new water can be injected.
of changing water? 1. Improving water quality: The purpose of changing water is to improve water quality. Because the water used in the fish tank is very limited, and it does not flow, even with the help of the filter, it will inevitably deteriorate, so if you want to improve the water quality, it is best to change the water regularly, but not too much each time, otherwise it will stimulate the fish.
2. Reduce ammonia nitrogen: After the decomposition of organic matter in water, a large amount of ammonia nitrogen will be produced, which is extremely harmful to fish, and its content can be reduced by changing water. But the most important thing is to cultivate nitrification system, with nitrifying bacteria, we can better reduce the content of ammonia nitrogen.
3. Increase the dissolved oxygen: When the water is changed, part of the oxygen will be brought into the water, so the dissolved oxygen in the water will also be increased, so that the fish can breathe better. In addition, in an environment with sufficient oxygen, the water will be better, the metabolism of the fish is fast, and it is not easy to get sick.
