Alveopora Coral dying

[Farq1717]

ey reefers! I bought this Alveopora coral 2-3 weeks ago and now it’s slowing dying. I tried doing everything Ik like change it’s placement and flow but nothing is working. When it first game it was very healthy but now it’s closed and Harding up. Please help me out and tell me what should I do. The top pic is how it was when I got it. And the bottom one is how it is right now. All the other corals are doing great except this one.

 

[Hemmdog]

What are your parameters? What light are you using?