I've used purple up in the past but didn't find it gave me any more coraline growth than with any other supliment. Give it a try if you already have it, it's not going to hurt anything.
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- Greg
90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2
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