My 180 gallon reef seems to have a lot of debris floating in the water column. Sand is not being stirred up and it is not airbubbles. I have tried skimming,filter socks, carbon,filter woold inside canister filters in the main display. Those are the methods I was told to try and have done and still cannot figure out what is floating around. Some are large pieces which should be taken out by the filter sock but aren't. Is there other methods I can try that are reef safe? What have you done in this predicament.


