Zebrafish belongs to a kind of pelagic fish, and it is normal to swim on the surface of the water in general, but if it floats on the surface at night, it may be caused by the small size of the fish tank or the lack of oxygen. This kind of fish needs a lot of oxygen when they sleep and rest, and if they lack oxygen, they will naturally float on the surface.
When raising zebrafish, do not change the water too often, you can change the water once a week. You can also raise some aquatic plants in the aquarium or fish tank, so that you can properly increase the oxygen in the water, and the situation of fish floating on the surface will be improved. At ordinary times, we should also let it bask in the sun properly, because fish also need sunshine during their growth.
1. Water temperature: The water temperature during feeding should be constant and should not change greatly, so as to avoid stimulation during the growth of the fish. Adjust the temperature of the water to 24-26 ℃, not too high or too low.
2. Airing: Before changing the water, you should first air the new water. This can reduce the chlorine in the water, and can also play a role in disinfection. This can also make the fish grow better, and can also improve the fish's physique, so it is not easy to get sick.
