Fish tank what air pump would be good for a 20g?

Question

im wondering what air pump would be good for a 20g fish tank.

Answer 1

top fin xp-20 air pump is good, mine has lasted over 5 years.

Answer 2

Well my Elite 801 has lasted for almost 12 years and it still works great. It is not that loud, derable, and powerful.  Elite 801 is about $20.00 Canadain.  Depending on your bubble bar you might want something a little more/less powerful (Elite 800/802).  You can take it from me, it is a fantastic air pump at great price.