If the fish tank is only filtered but not oxygenated, it is OK to raise small fish, but not big fish. Big fish are large and have a high demand for oxygen, so it is necessary to provide sufficient oxygen, otherwise the fish will lack oxygen and float their heads. Although some filtration can improve the effect of dissolved oxygen, but the increase of oxygen itself is limited, it is difficult to meet the consumption of large fish, not enough to feed fish tanks with low density is basically no problem.
of oxygenation? 1. Breathing: The most important function of oxygenation is to help fish breathe. Fish live in water and need to absorb oxygen from the water. The level of dissolved oxygen is very important for their health. Long-term hypoxia can even lead to the death of fish. Therefore, it is better to use an oxygen pump to oxygenate the fish throughout the day, so as to ensure the normal breathing of the fish.
2. Maintain water quality: Oxygenation is not only good for breathing, but also can maintain water quality. Oxygen is not directly helpful to water quality, but it can inhibit the growth of anaerobic bacteria, thus slowing down the deterioration of water quality, which also plays a side role in guaranteeing and creating a better growth environment.
3. Accelerate bacteria cultivation: Oxygen can effectively inhibit anaerobic bacteria and promote the reproduction of some aerobic beneficial bacteria. For example, the growth of nitrifying bacteria can not be separated from oxygen. Therefore, when cultivating bacteria, it is necessary to turn off the light and explode oxygen for a period of time, so as to establish a nitrification system faster.
