I have a 90 gallon that i have had set up for 2 and a half years. I had like 12 sps some zoas bubble coral war coral and green star poylps. I upgraded my light from a TEK 8 bulb 454 watts total with eggcrate for a cover to a ELOS planet ll with no top. Not there long after i lost one of sps due to rtn. Then my orange monti cap started to look funny in a certain area. Then i had a couple more sps with stn they died then a couple more. I had the light 4 inches off the tank and started it at 4 hours is it possible that i cooked them? I set the light up about a month ago and still losing corals as we speak everyday it seems that a new sps is going downhill. I also had my alk at 13 which i know was high but i got that in check now. i can't figure out what the problem is it is really annoying having your corals dieing for a month and not knowing whats going on. Yesterday i started to lose my war coral. So before it was SPS not lps. Green star polyps are fine zoos are fine ricorda's and bubble are fine. Anyone have any possible clue. s.g 1.024 temp 78 cal 400 alk 8 mag 1400 nitrate nitrite ammonia all 0 ph 8.1