my set up info! 90gal tank, a sump with 2 socks, a protein skimmer, a marineland 1475 gph pump, 4 powerheads. duel maxspec razors. water temp 77, 0 nitrites 0 nitrates, ph at 8.3, no ammonia. calcium at 480ppm, kh about 8 or 9 drops or 160+ ppm. tank is about 2yrs old yet every torch I put in there dies!:sad: photoperiod runs max from 12pm till 4pm then vamps back down! Anyone know why my torches keep dying?