Yeah, so I've got a bubble rock for Cass, but every pump I've tried in her 5g tank, and every one I've found online, is too powerful and pushes her around. Even the little Fluval 5-10 gallon air pumps are advertised as "QUIET AND POWERFUL" and don't have variable flow speed. I'm trying to find a weak air pump to provide a small amount of bubbles with very little flow. Is that unrealistic? Does an air pump like that not exist? Because an hour of research seems to tell me it's an unreasonable request. xD
Thanks for any help.