this has been going on for 2 months now. im getting a dark red build up of something on my buttons and its stopping them from opening. i move the frag to a QT and use tweezers to pull off the red stuff as much as i can. its thin and brittle. after i put the frag back in the DT the red stuff tuns neon orange and a day later most of it has died off and the buttons open up but not fully. i have to do this every 2 weeks and now i want a solution. anyone ever heard or delt with this before. all my other corals are perfect.