The circulating pump is helpful to improve the dissolved oxygen in the water body, but it is not a special oxygenation equipment after all, and the effect may be slightly worse. If there are not many fish, there may be no difference, but if the feeding density is relatively high, it will lead to the lack of oxygen in the fish. Therefore, the oxygenation pump is still needed. In addition to the oxygen pump, there are other ways to supplement oxygen, but they are often unstable.
1, do not love activity: fish hypoxia, the first performance is not love activity, the oxygen content in the water determines its metabolism, less oxygen metabolism is relatively slow, looks depressed. Because this is the first manifestation of hypoxia, it must be treated in time after discovery, otherwise the situation will become serious.
2. Loss of appetite: In addition to not being active, lack of oxygen can also lead to loss of appetite for fish, which will become not like to eat. Of course, there are many reasons why it does not eat, besides lack of oxygen, it may also be because of illness or poor water quality, so finally check the situation before deciding.
3. Concentrated floating head: If more fish are raised, the phenomenon of collective floating head will occur when there is a lack of oxygen. At this time, we should pay attention to it, because the situation of hypoxia is more serious, which will lead to its floating head, and need to use oxygenation tablets and other means of emergency oxygenation.
