I have a 60 gallon rimless with a sump and reef octopus diablo 160. Everything has been fine until last week and the new system has been running for about two months now. A week ago I had what looks like clouds of bubbles in the tank. So much that you can barely see the back of the tank. Water test are perfect. I tried filter material in the sump and a filter sock over the skimmer out and also over the return line back into the tank. Still cloud like bubbles. Radion pro light and ecotech vortech pump. Also the tank is full of real reef rock. You know the made made stuff. I even tried different water levels in the sump. Only a couple of corals are in the tank. I've had a saltwater tank since the early 90's and never seen anything like this. I know my skimmer is not quite broken in, but it shouldn't be like this. The only thing left is to change the water, that's my next plan. Please help! Any advice is welcome.


