There are two kinds of fish spit bubbles, the first is to spit bubbles in the water, and the second is to spit bubbles on the water surface. It is normal for fish to spit bubbles in the water, because when swimming, they need to inflate or deflate their swim bladder to change their density, so that they can float or dive. In the process of sinking, fish need to discharge gas, and there will be bubbles. If the fish spit bubbles on the surface of the water, the situation is different, indicating that the dissolved oxygen of the fish is low and needs to be oxygenated in time.
1. Oxygen pump: For fish farmers, buying an oxygen pump is the simplest oxygenation method. It is not only convenient to operate, but also has many benefits. It can promote the establishment of the nitrification system, and at the same time, it can maintain the water quality and reduce the decay rate of the water body. Oxygen pump is usually used to oxygenate, and 1-2 hours of oxygenation every afternoon is enough.
2. Aquatic plants: If you want to increase the amount of dissolved oxygen in the water, another way is to raise aquatic plants. Through photosynthesis, the plants can release oxygen. However, we must pay attention to the density of farming, too many plants are not conducive to the survival of fish.
3. Change water: You can also increase the dissolved oxygen in water by changing water. Usually according to the situation of fish, the frequency of water change is different, but up to two times a week, frequent water change is easy to stimulate the fish body, affect its appetite, and even lead to its death. When changing water, we should also pay attention to the water temperature, if the water temperature changes greatly, the fish can not live.
