In my experience, I used to only run an air stone at night, then decided to run it 24/7, and I believe my plants, and most of all, my fish are much more happier because of it. Also the extreme pearling of the plants is a great view, I also believe it helped with alot of algae issues i was having. I also have small micro o2 bubbles rising from the substrate.
I keep the air stone in the corner behind a bunch of plants and don't even notice it anymore. My suggestion, run one. You won't regret it.
Last edited by denske; 07-22-2013 at 10:32 PM.