Buklau
Aquarium Advice Regular
- Joined
- Feb 3, 2012
- Messages
- 64
Have a small piece of hard coral in my tank and I think it is a cats paw. It has green polyps on it. Last night all the polyps closed up and are very slowly coming back out today. The only thing that I did last night was dose some calcium to the tank. I have done that I the past and nothing happened. Does anyone have any thoughts? Here is pic of the coral.