Whether the traffic light fish need oxygen depends on the volume of the fish tank, the breeding density, and the configuration of the equipment. If the size of the fish tank is very large, even if there are more fish, the fish can get enough oxygen from the water and will not be hypoxic. If the number of fish in the tank is very small, as long as the water is changed regularly, the dissolved oxygen in the water can ensure that the fish can breathe normally. Installing a filter device in the fish tank can also increase the oxygen content in the water. If the above conditions are not met, the lack of oxygen in the water can easily lead to the death of fish. In this case, the only way to ensure the normal breathing of the fish is to inject oxygen into the water.
If the fish's lack of oxygen is not too serious, it can resume normal breathing after a period of oxygen supply, and then it can stop oxygenating. It is generally not recommended to add oxygen to the water for 24 hours. Because long-term oxygen will make the oxygen content in the water too high, when the fish absorb too much oxygen, the fin bulging is prone to bubble disease. If you want to add oxygen to the fish tank, you can do oxygen for 1 to 2 hours a day, which can not only provide oxygen for the fish, but also not make the fish absorb too much oxygen. Or a filtering device is installed in the fish tank, which can properly increase oxygen while purifying the water body.
