Hi everyone, Ive had my tank up for about a month now and I think I'm having a problem with micro bubbles. It just seems a little cloudy under my lights and I think its super small bubbles. Problem is, I dont know where from. I have a sump and return hose. There are no bubbles in the sump, its more clear than my tank. I was looking for a hole in my U return pipe and cant find one. Could there be a pinhole somewhere that doesnt leak but draws in air? My sump is a super old Pro clear aquatics bio ball system with an overflow box. Will replacing the return hose and getting a new U pipe maybe work? is it maybe just dust suspended in the water column and a water change will help? I can post pics here for some reason but any help or ideas would be appreciated. Thank you!