. The oxygen bag of fish fry can last for about three days. It should be noted that the maintenance time is often related to the density of the fry in the bag, the greater the density, the higher the oxygen consumption, the lower the maintenance time, and even some fish will die the next day. If the density is small, it will last longer, but it does not mean that there will be no fish dead, but the number of dead fish is relatively small, which can ensure the survival of most fish.
of oxygenating fish? 1. Breathing: The primary benefit of oxygenation is that it is conducive to the breathing of fish. Fish live in water, but they also breathe, exchanging gases as water flows through their gills. The higher the oxygen in the water, the more helpful it is for the fish to breathe, and the less oxygen it has, the more likely it is to float.
2. Maintain water quality: Keep oxygenation every day, which is also helpful to maintain water quality. In an oxygen-rich environment, aerobic bacteria can multiply in large numbers, such as nitrifying bacteria, which can convert ammonia nitrogen in water, so it has a good effect on the maintenance of water quality.
3. Promote bacteria cultivation: It is usually necessary to oxygenate when opening the tank, which can not only increase the dissolved oxygen in the water, but also promote the growth and reproduction of nitrifying bacteria. It should be noted that the culture solution should be added once a week when cultivating bacteria. In addition to oxygenation, it is best to turn off the light.
