What's the difference between a filter and an oxygen pump? Can a fish filter be used only?
The filter is a water pump as the driving force, so that the flow through the filter material, to achieve the purpose of purifying water quality aquarium equipment, common on the filter, side (back) filter, bottom filter, bucket filter, filter. Some filters incorporate oxygen enhancing functions, such as three in one submersible pumps, etc..The oxygen pump is a kind of aquarium equipment that uses air to press air into the water to increase the contact area between water and air and to increase dissolved oxygen in water. General matching pipe, cloth head use.Fish must filter equipment, but not to use the air pump, it is not hypoxia. I don't need two jars. The grass tank produces a lot of oxygen, and it doesn't need it. In the seawater tank, the protein separator is pumped heavily and has enough dissolved oxygen. I have an air pump, which is used only for the hatching of good year shrimps.
Yes, but you can't keep a lot of fish. Otherwise, the fish will suffer from oxygen deficiency