Hi, I'm new to this forum, marine aquariums, and it seems everything dealing with the two. I recently got what I believe is some type of toadstool coral. If anyone know the actual name, that would be very helpful. When I first saw it, the little tentacles were all out. But since putting the guy in my tank, one a few tentacles have come out and none in the recent past. Also, the color on the top of it has faded to a lighter color and it keeps tipping over (it can't keep itself stood up). Anyone have any ideas what might be wrong with it or know how I can help it get better? I have a few other corals in the tank and they are all doing great. Thanks in advance for everyone's help! By the way, it's in a 24G nanocube. THANKS!