Total noob here, but i'd fix the voltage issue first...then sit on it for a week and see what happens. If these corals like a little dirtier environment, i'd get some phytoplankton and target feed some corals.
Like i said i'm a total noob, but i have some corals that require feeding, since i've been target feeding all corals, even ones that do not need to be fed, have taken off... Phyto really filths up the skimmer and the tank a little, but it's been noticeably better.
i think that ignorance is bliss, in a lot of ways, in this hobby. It seems the more you know the more changes you start to make and end up with failure. us idiot newbies seem to do pretty good until we think we know something...Just say'n as mentioned by others patience.