If you are raising koi in a pond, under normal circumstances, you do not need to open the oxygen pump. If it is indoor breeding Koi, it is necessary to decide whether to oxygenate or not according to the specific situation. The fish action is normal, and the indoor temperature does not exceed 26 degrees, generally do not need to open the oxygen pump. If the fish appear to emerge, it means that the koi has begun to lack oxygen, at this time need to immediately oxygen.
If the breeding density is too large, Koi vitality is insufficient, it is necessary to 24 hours of oxygen. Normally, three to six hours of oxygen a day is enough. If the temperature is too high, Koi are prone to hypoxia at night, so they need oxygen all night, and they do not need oxygen at other times.
For small and medium-sized family-type fish tanks, you can use the water demon essence air pump. The advantage of this air pump is that it is small in size and does not occupy space. Breeding large koi requires the use of a three-in-one air pump, which is simple and convenient. The disadvantage is that it is easy to filter and can not directly take away the excrement of Koi, which is easy to cause secondary infection. Therefore, if the three-in-one air pump is used, water needs to be changed frequently to avoid infection.
