80 cm deep fish tank with 10w oxygen pump can be. The bigger the fish tank, the higher the demand for oxygen pump power. If the power is too low, the dissolved oxygen will rise slowly, which will be unfavorable to the fish's breathing. More importantly, the pressure at the bottom of the deeper fish tank is very high, and the air pump will not bubble if its power is insufficient. Although oxygen pump is not needed for raising any fish, it is necessary to prepare oxygen pump for some large ornamental fish.

1. Arowana: Arowana is a very common ornamental fish, which is large in size and fierce in temperament, and rarely mixed with other fish. This kind of fish has a high demand for oxygen, not only that, but also has certain requirements for water quality and temperature. It is not easy to raise it well, but the arowana in the raised state is also very beautiful.

2. Siraitia grosvenorii: Siraitia grosvenorii is an artificially cultivated ornamental fish, also called Sparus macrocephalus. Its biggest feature is that it has a head tumor on its head and looks like Arhat. This kind of fish should be raised in an environment of 28-30 ℃, which is widely practiced and can be eaten, such as shrimp, fish and blood insects in good years.

3. Parrot fish: Parrot fish is different from the fish in front of it. It is not large in size, but it requires high dissolved oxygen. Because this kind of fish is not a natural species, but an artificially cultivated ornamental fish, although it looks beautiful, it has certain genetic defects, and its mouth cannot be closed freely, so it cannot be raised in an environment with low dissolved oxygen.