If you want to increase oxygen in the fish pond without electricity, you can put some oxygen-increasing drugs into the fish tank, such as sodium carbonate or calcium peroxide, or you can increase oxygen by cultivating some organisms, the common one is algae. Usually when the fish lack oxygen, they need to increase oxygen, if the dissolved oxygen in the water is too high, it will lead to the fish can not adapt to the low dissolved oxygen environment, and then make them die.
1. Culture: For players who have just started fish farming, culture is crucial. If the nitrifying bacteria are well cultured, the subsequent troubles will be less. As an aerobic bacterium, the best way to make it grow and reproduce rapidly is to use an oxygen pump to boost it, usually to turn off the light and explode oxygen for about a day.
2. Daily: It is also necessary to turn on the oxygen pump for daily fish farming, but it is not necessary to keep it on all the time, because too high dissolved oxygen is not a good thing for fish. If they adapt to the water body with high dissolved oxygen, once the oxygen is reduced, it will lead to their death. Usually 2-4 hours a day is enough, and 2 hours more in bad weather.
3. Sick: If the fish is sick, it is also necessary to turn on the oxygen pump. The purpose of doing so is to maintain the water quality and prevent the disease from deteriorating. In addition, some drugs will consume oxygen when they are poured into water, which needs to be compensated by oxygenation.