Is there a downfall to having your mag that high? I kept mine up there for a few months to get rid of bryopsis and everything did great except the bryopsis.
I know that montipora like higher magnesium, and I usually shoot for 1400 ppm. I don't dose it, and haven't dosed once since I set up this tank. It's already high in the Sybon Salt, and then my calcium reactor media has some magnesium within it as well.
Marc, are you still dosing vodka? or some other product making your system a ULNS?
No, all my system has is: DSB LR Refugium Skimmer Biopellets (Vertex) Carbon Calcium reactor