Koi fish need oxygen. Koi is a large ornamental fish, which generally consumes a lot of oxygen. Therefore, if oxygen is not applied, the dissolved oxygen in the water will soon be consumed clean, resulting in the fish being unable to breathe. Usually, oxygenation is uninterrupted for 24 hours. If the fish tank is large, contains enough water, and the feeding density is very small, it is ok to oxygenate in different periods. In this case, it takes 2 hours in the morning and 2 hours in the afternoon.

1, which is beneficial to breathing: The primary benefit of oxygenation is beneficial to breathing of koi fish, because they live in water and need a certain amount of oxygen. If the dissolved oxygen is too low, it will lead to hypoxia floating head and even affect life, so oxygenation is still necessary.

2. Maintain water quality: There is sufficient oxygen in the water body, which is helpful to maintain water quality. On the one hand, it can promote the reproduction of nitrifying bacteria, so as to better transform ammonia nitrogen and avoid poisoning koi. On the other hand, it can also inhibit the growth of anaerobic bacteria, which also has a certain purification effect on water.

3, promote growth: Oxygen can promote metabolism, so the growth rate of koi fish will be accelerated when dissolved oxygen is sufficient. Moreover, fish also need more oxygen in the digestion process, and with some daily consumption, there are many benefits of supplying oxygen to them.