ID this green mushroom and what it's doing.

[gearqueer]

I know it's common but what is it called? Also what does it appear to be doing? Usually it's just spread out.

 

[DrBDC]

Just a plain old green striped mushroom. They do things like that at times. It could be getting too much light if you've changed the position/light/etc. If nothing changed just leave it. It may even decide to move and let some youngin's grow under where it was.

 

[gearqueer]

http://reefcentral.com/gallery/data/500/124088Green_Mushroom_Day_2.jpg
What is it doing now?

 

[gearqueer]

This might work better.

 

[UH_OH_5_OH]

Whatever it's doing.....my plain old green mushroom is doing the same exact thing !

 

[Travis L. Stevens]

It is commonly called a Green Striped Mushroom and it's your run of the mill Actinodiscus (=Discosoma)