I would assume the skimmer just needs to "break-in" a little bit. I had a heck of a time with my CSS when I first got it but a year+ on it works great and pulls the darkest nastiest crud out of the tank you could imagine.
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- Greg
90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2
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