I have a 90g tank that has 2 150w Mh and 4H5to that sit 6 inches from the water. I had a green slimer that i was keeping really low in the tank. For some I reason i decided to move it up in the tank slightly and it immediately bleached. I now have ti back down on the sand but it's lost most of it's polyps and is pretty bleached. Is there a way to save this piece or is it a goner? Should i put it out of the light for a while? THis isn't the first SPS i've bleached, i dont understand how I bleach SPS with only 2 150w MH?