90 Gallon SPS - restart after move

[Cubeman]

So had my first hiccup today. This brown staghorn started to show some bleaching in the centre stem 2 days after being added. My best guess was too much light (under new 400Mh) so I dropped it to the bottom of the tank. This slowed the progress of the bleached area but I ended up fragging the frag and tossing the white section. Placed all the new fragged pieces in darker areas of the tank and crossing my fingers