Magnesium at 1250. Dose or not??

[LeanneP]

My magnesium has been consistantly at 1250 for awhile which I know is sort of borderline. All my other parameters are good. Should I just leave it alone or get it up a bit higher. Have just a few corals and an anenome that has still not acclimated properly (still has short tentacles) even though I have had it for over 2 months. Thought it might be the flow or lighting or maybe the lower magnesium.

Leanne