Anyone know what this is?

[Coral Kai]

It was brown, turning green now

 

[Zer0]

Kinda hard to tell without a better picture and possibly more time to develop any more colors, but the growth pattern and knobby structure makes me think of a green slimer.

 

[vetteguy53081]

Likely getting its colors back from zooxanthellae which gives it its' colors

 

[Coral Kai]

Kinda hard to tell without a better picture and possibly more time to develop any more colors, but the growth pattern and knobby structure makes me think of a green slimer.

Awesome ..thanks