For artificial breeding of guppy, whether the filter should be kept on or not is best determined according to the breeding density and the frequency of water change. The pollution of guppy to water quality is not serious. If the feeding space and water body are relatively large and the frequency of water change is normal, it is ok not to turn on the filter. If the breeder does not change water frequently and the water body is not very large, it is necessary to turn on the filter. But you don't need to open it all the time, just open it during the day. If the feeding density is too high, always turn on the filter. Because the feeding density is too high, the water quality is seriously polluted. Even if the breeder can keep the normal water change frequency, the water quality cannot be guaranteed to be clean, so it is necessary to turn on the filter all the time.

The guppy oxygen pump does not need to be on all the time, because their demand for oxygen is not high, and the oxygen consumption rate is not very fast. Breeders only need to pump oxygen for a few hours during the day to meet their demand for oxygen.

But when the air pressure is low or the temperature is high in summer, it is best for breeders to turn on the oxygen pump at all times. Because when the air pressure is low or the air temperature is too high, the amount of dissolved oxygen in the water will decrease, so it is necessary to keep oxygenation to ensure sufficient oxygen.