Gawd, I hate testing calcium. I haven't tested in a while, but it was usually up there between 400 and 450. I'll test PH when I get home.

I've also added the Mark Weiss Phosphate sponge to my cannister filter - that could be having an effect as well. It's an iron based media - not aluminum based like phosphsorb (the aluminum based products have been know to be harsh on certain corals - particularly leathers).