1. Do you need an oxygen pump to raise small koi fish You can raise small koi fish without an oxygen pump. The oxygen consumption of fish is generally related to the size of the body, and the consumption is large when the body is large. The oxygen consumption of small koi is not very high, so it is ok without oxygen pump, unless the feeding density is relatively large. Usually, we must pay attention to observation to see if the fish have floating head performance. If so, it is best to install an oxygen pump, so as to prevent the occurrence of hypoxia.
2. What kind of fish should be raised without oxygenation1. Goldfish: Goldfish is one of the common ornamental fish. It has a long history of cultivation in China, with many varieties and rich colors. Because of its small size and low demand for oxygen, it can be fed without turning on oxygen. However, if the feeding density is relatively high, it is better to turn on the oxygen pump.
2, guppy: Guppy is a common small ornamental fish, its body length is only about 3-5 cm, and its tail accounts for one third. This kind of fish doesn't need much oxygen, and it doesn't need to be turned on when it is raised. Moreover, its adaptability is strong, and it is easy to reproduce, which is especially suitable for novices.
3. Lamp fish: Lamp fish is a small fish native to South America. There are many kinds, such as traffic lights, lotus lanterns, red-nosed scissors, etc. They are not big in size, so they can be turned on without oxygen. Because this kind of fish has the characteristics of group swimming, it is suitable for raising more.
