id please

[rogergolf66]

 

[RyanSweatt2004]

It looks like a green rhodactis mushroom. It should brighten up over time.

 

[javimarino]

+1 rhodactis mushroom

 

[Mr.6LineWrasse]

Yeah, It'll look great with some more color!

 

[MARINECRITTERS]

if you notice colour fading move it up.

 

[TealCobra]

Looks as if it could be the larger Frilly Mushroom variety. Time will tell and I suspect it will color up if given time and good conditions.