Usually, when the water pressure is normal, only 2-4 hours of oxygen filling is enough every day. However, in summer or rainy weather, the time of oxygenation should be extended appropriately, generally controlled between 4-6 hours, and intermittent oxygenation. If there are aquatic plants in the tank, they will breathe and consume more oxygen at night, so in the evening, usually 6-8 o'clock, they need to be oxygenated for 1-2 hours.
When the new fish tank is opened, in order to promote the establishment of the nitrification system, it needs to explode oxygen for a period of time after the nitrifying bacteria are put in. The reason for the explosion of oxygen is that nitrifying bacteria belong to aerobic bacteria, the more oxygen it has, the faster it reproduces, so that the nitrification system can be established faster. In normal farming, if the fish are sick, they also need to explode oxygen, sufficient oxygen can accelerate the metabolism of the fish, which is conducive to self-healing.
Under normal circumstances, fish must be oxygen, because the dissolved oxygen in the water is too low will affect the health of the fish. But there are some special species that can survive in water with low oxygen content, such as goldfish, dragon fish and fighting fish. However, in order for the fish to grow better, but also to facilitate its hair color, or need oxygen.
