I've had my elegance for about 3-4 weeks now. For the first two weeks it was open fully and looked great. Now for the last two weeks it hasn't opened at all. During the day it starts to come out but never does. My params are all in check and have been for the longest time, ammonia, nitrite, nitrate all 0, CA 480, Alk 9 MG 1280. It's sitting on the sand bed in a low flow area. All of my other corals are doing great, SPS, frogspawn, duncans, acans, all growing just fine. Any one have any ideas. Here's a before and after pic.