Jman9331, I agree with with Sapper577 and Russ265 a heavy water change and a constant weekly water change schedule will help you with a new fresh start, and might help with your frags. The key is to maintain an stable water parameter. Back in the days there were no ATO's, no LED's bearly an efficient protein skimmer and all the new toys that the hobby had acquired thru the years. Nor even a reliable Test Kit. And many of us who were in the hobby back them were able to keep SPS, LPS, Softies. With a high rate of success. The key was adecuate light for their symbiotic relationship with zoosantelae, a good water quality mostly from water changes and some dozing, and a lot of observation and passion. Probably you could be experiencing a pest plague but I bet on water quality.
I would recommend you to take a water sample to a friend or your LFS for a doble check on your parameters, probably one of them is way out, and could be that your test kit reactors been damage, it could happen. Your temperature at 79° is almost out off range they behave better between 76° & 78° the summer is in the corner, I suggest start looking the way to keep that temperature down with fans. By the way, that means more evaporation, so keep an eye on it and keep it refilling on a daily base, no hesitate, mornings and evenings. Concerning to light, time exposing and intensity is crucial. Acclimate them from lower intensity up to the highest they could accept, that's a slow process, but as I said, keep an eye on it closely and find the spot were they better behave.
Like I said before all the new gadgets are from few years up. What they do is, to make it easier and depend on it, but when a trouble occurs, it goes all the way to a crash because we rely on them and we haven't learn how to our tanks.
And remember what work's for you might not work for me, but it help.
Good luck!