Ive had a green flower pot coral In my 72 gal for about 6 months now, and it will not seem to fully open. It's base is about 3" in diameter, and the polyps only seem to extend about 1" at most and it's usually around 75% of the total polyps. Aside from the that it looks healthy, flesh is entirely covering the skeleton, no bleaching, it has plenty of space from other coral, which are all doing fine, and my water parameters are spot on. Ive tried a few different placements but I feel I'm getting it wrong. I have a single 300 gph power head and T8 lighting. Any help would be appreciated.

