It is possible to place the oxygen pump on the bottom filter. The bottom filter itself will not have too much contact with the air, so it is difficult to increase the dissolved oxygen in the water body. If the oxygen in the water is insufficient, it needs to be supplemented in other ways, and the oxygen pump is a good choice. However, the oxygen pump does not need to be on all the time, 2-4 hours a day is enough, if there are aquatic plants in the fish tank, it can be opened for an additional hour in the evening.
1. Koi: Koi is a relatively active fish, because of its vigorous vitality, so the demand for oxygen is also very large, so it needs to be given oxygen, otherwise it is easy to die because of lack of oxygen. There are many species of this kind of fish, but they are mild in nature, easy to raise, and do not require high water temperature.
2. Arowana: As a common large ornamental fish, Arowana consumes a lot of oxygen. If you don't pay attention to oxygen, you can't keep it alive. The body length of this kind of fish is about 40-50 centimeters, so it needs a bigger tank to raise, because of its fierce temperament, it is difficult to mix culture.
3. Arhat: Arhat fish is also a fish that prefers a high dissolved oxygen environment. If the dissolved oxygen is low, it is often difficult to feed. Usually the water temperature should be maintained at about 30 C, dissolved oxygen should be greater than 6 mg per liter, if the oxygen is insufficient, it needs to be oxygenated by oxygenation equipment.
