Frogspawn not openning

I recently acquired a large branching frogspawn at a swap and ever since I added it to my tank, the coral has been having problems. It was massive the first couple days, but hasn't opened fully since.



I'm not sure what the problem could be. My water chemistry is near perfect. I have good flow around my frogspawn and use led lights for the tank.



Had anyone had this problem before? Help!