ID Help - Is This a Mushroom?

[Cristi]

A week or so ago this suddenly appeared on the sand bed. It is only about 1/4" in diameter and is a bright white with neon green edges. There are pale peach, almost translucent, dots on it. The green edge and peach dots are flourescent when only the atinics are on. It appears to have a smooth soft texture. Is it a shroom? If not does anyone know what it is?
Thanks.

 

[BristlewormKing]

It looks like a bleached out ricordia - it may have been attached to something else in your tank and not getting the proper light and nutrition.

 

[Travis L. Stevens]

Definitely bleached. So much so it's hard to tell what it is. I'm leaning on Actinodiscus though. Just a regular mushroom of unknown color.

 

[Cristi]

Thanks! I will try and rescue it so it colors back up.

 

[chrisstie]

Looks like its just a baby too... try putting it in a shotglass with some rubble so it wont blow around in your tank and maybe attach after a few weeks?