Anyone have any ideas why my birdsnest is losing its skin?. It was one of the 1st corals i put in, growth was been great with great polyp extension. Lighting hasnt changed, flow hasnt changed. Parameters are good and stable, i noticed my alk creeping so i droped the dose 1ml. It was showing signs of distress last week but i couldnt get my dirty hands in the tank, so on saturday i pulled it off the rock to a lower flow area and within 12 hours it droped most of its skin

