Green leather coral gone brown

[GrooveControl]

Ust added a small green leather coral to my tank on sunday. Two days later its brown. Has it gone into shock? Or is it dying? Any thoughts? Thanks.

 

[2Reefnutz]

If it's a toadstool, they need help sloughing off their old skin. Check your water flow where the coral is and make sure he's getting enough. They need moderate to strong flow to keep them happy.