#birdsnest

Hoping for some more eyes on this to help me nail down what's wrong with my green goddess birdsnest. She was doing great for months after a rocky start in Nov where it lost over 90% of it's polyps after accidental exposure to RO water during the initial introduction to the tank. (noob move on...

Hi all, I recently got my first bird's-nest two weeks ago and the bottom of it is still white. I have it placed higher in my tank with the wave maker pointing at it. I'm not sure what to do. Should I move it lower in my tank? I have attached a pic of it. Thank you!