? Generally speaking, the kissing fish does not need oxygen. Because first of all, they are small, the demand for oxygen is not high, and the oxygen consumption is not high, as long as the feeding density is normal, there is no need to give them oxygen. Secondly, they have the same auxiliary respiratory organs as the betta family. If there is a lack of oxygen in the tank, they will swim to the surface to breathe, but after breathing, they will sink to the bottom of the tank to continue cleaning algae and moss. Therefore, kissing fish do not need oxygen under normal feeding conditions. However, in summer, when the temperature is high or the air pressure is low, the breeder needs to turn on the oxygen pump to avoid their discomfort due to lack of oxygen.
? The water temperature that the kissing fish likes is 26 ℃. Whether it needs to be heated or not depends on the surrounding environment and season. For example, in summer, it does not need to be heated. When the temperature is high, it needs to use other auxiliary tools to cool down. But in autumn or winter, breeders need to heat them, because the temperature is low in autumn and winter, even in a heated room, the water temperature can not reach 26 degrees Celsius, so they need to be heated. In spring, breeders had better keep heating, although they can accept the water temperature of 20 degrees Celsius, but in spring, the temperature difference between morning and evening is large, if not heated, they are likely to be uncomfortable.