Ok. So I upgraded my lighting in my 48 x 18 x 30 to two (2) AP700’s from some decent LED strip lights this past weekend. Have a 2 hour ramp up and down to a 8 hour normal period (total 12 hour photo period) with the 8 set at 45% intensity to allow my few corals to acclimate (I have 4, adding slowly) This tank has cycled and in fact, only mini cycled as it was already established when I bought it but no livestock, just live sand and live rock. I added more live rock, upgraded the sump, added an eshopps 200 skimmer, new gyre pumps, in essence, there is nothing mechanical out of sorts and my Params are right where they should be. I can give them if necessary but I do not believe this issue is water related. Back to the lighting. The coral in the subject has been doing really well. Nice bushy extension, bright color etc. I noticed after the light switch that some of the rear polyps were turning green almost as if there was algae growing or maybe some of the nori I feed the tang was stuck on it. So I did something that I have later found out that I shouldn’t have done. I rubbed it and in doing so, I think I irritated the heck out of it as well as the adjacent branches, which now have these weird blisters. I did some research and at first was terrified that this may be brown jelly syndrome and my heart sank. After looking at pictures though, I don’t think this is it. But I want to get some more experienced opinions. Any thoughts anx help is appreciated