Do goldfish need an air pump in the tank?

Answer 1

Short answer: No. But it depends on how much water they have.

Goldfish can be kept in ponds for example. The larger the surface area of the water in your aquarium, the more gas exchange will occur, and the easier it will be to maintain proper amounts of oxygen in the water.

The point of an air pump is to agitate the surface of the water. This encourages gas exchange at the surface, which is what puts new oxygen into the water. Contrary to popular belief, the bubbles themselves do NOT add oxygen to the water. It is the surface agitation they cause that aids in oxygenating the water. Gas exchange will happen even in completely still water, but surface agitation enhances it.

In an aquarium, you probably need some kind of surface agitation unless you have a very large tank. Power filters can themselves provide adequate surface agitation, but having an air pump is never a bad thing.

Answer 2

No, it's just that you need to change your water more often so your fish don't suffocate.

Yes, that is right but, If you are lazy like me and doesn't want to change the water like every day you will need a air pump if you have a 10 gallon tank you will need a 10 gallon air pump.

Answer 3

yes and no. most goldfish, such as koi and ruyukins, need to be kept in ponds besause they can get about 8". So, they would need to be kept in a tank of about 50 gallons AT LEAST. Some people even keep them in BOWLS!!!! how cruel, keeping them in a small bowl, wich will cause stunt growth, and shorter lifes. but, back to the question, yes. they do. they are considered the messiest of fish, so a filter would be good, too.

Answer 4

Yes they do if you wnt them to live a long life, also by using a pump you can keep the water clean.