Marshall Jamison
Reefing newb
My hydnophora has a bunch of brown spots. They seem bits of exposed skeleton, that, when exposed they are immediately Brown. My parameters are good except for high calcium about 500. Temp is at 80.i recently rose the salinity in the tank from 1.022 to 25, slowly over about two weeks since then it has been getting the spots.what is it and is there any treatment. Thanks