Guppies float to the water after hypoxia, but they are upper fish and often move in the upper layer, so breeders need to observe carefully to judge whether they are hypoxia. After being deprived of oxygen, guppies will extend their heads to the water to breathe, their mouths will open and close, and their gill covers will open wider than usual. Moreover, their swimming speed will be accelerated and they will be impatient.

In addition to behavior, guppies will become nervous after lack of oxygen, and some will remain motionless on the water. Breeders need to get oxygen immediately after finding that they are deprived of oxygen. If there is no oxygen, they can increase the dissolved oxygen in the water by changing water.

If an oxygen pump is installed, it is only necessary to connect the air pump with the air stone, then put it into water and electrify it. This method of oxygenation is relatively simple and effective. Oxygen for several hours every day can meet their demand for oxygen, and many fish farmers will choose this way to oxygenate guppies.

If there is no oxygen pump, you can pour water into the fish tank first, and then shake it, so that the water and air can be fully contacted, and the oxygen in the water can also be increased. You can also plant some aquatic plants or algae in the fish tank, and use their photosynthesis to increase the oxygen in the fish tank.