Went to la last night came home and some of my birds nest were bleached out ? Any ideas why ? I've been adjusting my doser to get everything in the sweet spot and before I left my alk was 6.7 cal 430 mag 1230 I split my daily dose for all three and uped the ml and left town when I came back boom these two pcs were fryed there's still one right under it just fine and like 5 other big pcs in the tank just great always had birds nest growing out of control anyway my alk was 9.9 cal 450 and mg 1440 every thing better besides the high alk at 9.9 any ideas why the bleaching ?