Cyphastrea has been growing like wildfire in my tank for the last two years. I bought two small frag's and it has grown fiftyfold across the rock. Recently it has stopped spreading and is looking a bit bleachy in some places. and now algae is gorwing in the pasts where it bleached. DKH 8 Cal has been 380. Now for 410 Mag 1400 Trates low I have been dosing vodka although I do not think that is the problem. Anybody seen this?