Ok how important is it to use a air pump I have one and I had it. Running since I got the tank but when I changed the setup I didn't put it back do I really need one. And I also have a nebulizer for those of u who don't know what that is its a medical machine that was given to my son for his ashma that pumps air I put it in my old tank and it made more bubbles than any other air pump out there so id like to know everyones opinion on this thank in advance . P.s. I though fish don't breath air so what the point and is it ok to use the nebulizer