Air

[Omardiel]

How big should be my air pomp to air my water in a 35 galon can

[Willie]

As long as air comes out of the airstone, you're good within 24 hours.

Willie

[Ryan925]

I'd say get an adjustable one. Depends on type of stone or wand you are using. I myself am a huge fan of the hydrofarm pumps. The have a large adjustment knob and are the quietest I have found over the years the come in single, dual or quadruple outlet I believe.