Help: SPS bleaching and STN

Well I feel really silly. I ripped my tank apart and now it looks like a frag tank. Pretty much all the large rocks are outside baking in the sun. OH well, at least I can rebuild a nice bonsai tree like everyone else.

All colonies were pulled and mounted on travertine tiles. I haven't found any AEFW at all, nor any eggs. I must have confused and misidentified it with rotifiers or copepods? I saw two creatures jump out of the coral when it was in an iodine dip and die. Can flat worms run around really fast? yah!!!!!!

I believe the issue was not due to water quality but actually due to low alkalinity. I replaced the regent and it was way off. I'm hoping to run my ALK much higher now at about 9dKH to ensure I don't have these issues anymore. I'm assuming with the ALK at 6.2 dKH, the tips got burnt and the STN started.

I'm going to put all 6 banks on 6500K and just grow the coral out. Once they are large enough, i'll focus on coloring them up.