When raising koi, it is a very important aspect to provide them with enough oxygen. Sometimes, due to the large number of fish in the tank, resulting in insufficient oxygen, at this time they need to be artificially oxygenated. Generally speaking, Koi need oxygen to breed. However, a few hours of oxygen every day on the line, do not have to keep the oxygen pump open, otherwise waste more electricity, but also easy to produce noise, is not conducive to the growth of Koi.
Oxygen is not the only way to provide enough oxygen for Koi. If the water is very dirty, then the dissolved oxygen will be very small, so water quality is also an important aspect. Change the water regularly to make the dissolved oxygen in the water higher. Moreover, you can also put some green plants in the fish tank, such as water plants and so on, they can also produce a certain amount of oxygen in the light.
If the koi fish is not given oxygen for a long time, then it may have a certain impact on its growth and development. Specifically, however, how long it lasts depends on a number of factors. For example, water quality, if you insist on regular water change but no oxygen, then the dissolved oxygen in the water may also meet the oxygen requirements of Koi, at this time they can persist for a long time.
However, if you do not use oxygen and do not pay attention to changing the water at the same time, resulting in very dirty water in the fish tank, then the koi can persist for a very short time. In addition, the number of koi for them in the absence of oxygen can stand long is also related to the number of koi for oxygen requirements are high, at this time they can not oxygen for a relatively short time. Generally speaking, a strong individual in good water quality can hold out for 2-3 days without oxygen.
