so it has officially been a month since I entered the aquarium hobby. I definitely am a research freak and spend all day trying to learn as much as I can about my 3 molly fish and my blue mystery snail. I have a ten gallon tank with a hang on filter and a heater that I keep at a cozy 82 degrees. As I’m becoming more educated and learning more about my fish needs I just stumbled across information about air pumps. Now this is where my question comes up. Do I need an air pump for my tank if I don’t have live plants ? I do worry now that maybe there isn’t as much oxygen circulating as I thought, and feel terrible about it. It’s been a super exciting month with the fish and I definitely see them being in my life long term. So should I add an air pump? And if so what kind of stone do I add to it?