That brain looks amazing! Do you have a problem with the rock flower moving around? My wife has one in hers and it will not stay put. It wants to move on top of another coral.
Thanks! It's a platygyra brain coral and one of the first corals I added to the tank. It was about the size of a quarter when I got it and now it's about the size of a softball cut in half.
Surprisingly, I haven't had much issue with the rock flower moving. When I first got him I tried keeping him on the sand bed but he moved around a bunch. Once I put him on the lower ledge of the rock work, he moved over maybe 3" to that specific spot and has been there ever since. I actually have a second one that's right next to him, but it's hard to get a picture because it basically faces the back of the tank. I think the key is not too much lighting and not too much flow and they'll stay put. Hope that helps!