major bleaching event

Ok so newb mistake I made, broke one of the rules. I have a 30 gal sps system (~26-27 gals) my system had been stable for the past 6 mos (big 5 alk ~9.3, ca ~440s, mg~1500, po4 ~ .05, no3 ~10 using RS PRO salt) I added 15 small frags and bigger frags (5 almost colony size) in a span of 3 -4...