Concern with Hairy Green Mushroom

[Mike87SS]

I have a Hairy Green Mushroom, and it looks to be in great shape, except for one shroom. The bumps on this one shroom have turned white, while the others are all brown. I have the shroom on top of the LR so it is as close to the light as possible

Can anyone offer any advise on what to do?

Tank setup:
75 gallon
NO flourescent and actinic

Ammonia and Nitrite are 0
Nitrates are 20
pH 8.3
alk 9
SG 1.023
78 degrees

I hope it is ok. It has added a lot to my tank.

 

[WharfRat]

can you get a pic of the shrooms by chance..its a bit hard to diagnose without being able to see it.