brain coral bleaching

[jonbnelson]

just checked all my levels and all intact, my one brain coral is bleaching but hanging in there...all fish and all other corals are doing fine except for some red hair algae crepping in. I have a 22gal cadlights.com system with 3 10,000k and 3 actinics...again, all water chem looks ok...what could be the problem? i do water changes once a week or so, top off with freash water, not tap, add essential elements maybe once/week, feeding marine snow 1-2x/week...coral is set to bottom of tank while other is set to mid tank (which is fine) I have tried to reloacate at same level but still bleached....what do you think?

[paininthewrasse]

are you feeding it meaty foods? I give my a hunk of shrimp.. silversides etc 2x or more a week...

[jonbnelson]

yeah some mysis shrimp for the whole group but not doing so great, strange b/c everything else is doing fine and all leverl are within normal limits...I don't kow what else todo..i don't want to start dosing with iodine and supplements and get the whole chemistry out of whack either...just can't figure it out...any other thoughts guys?