Round Bumps on Mushrooms?

[fraglerock]

I have some shrooms with round bumps protruding from (on) some of my mushrooms. It my be not thing, but not all the mushrooms have these bumps on them. Please take a look at pics. If some one can let me know if this is normal or not.
I would appreciate any input.
Thank you
Fraglerock

 

[gemmy]

It's normal and there is no need to worry.

 

[aletalindsay]

Wow it looks beautiful. It is a picture of your aquarium. It is so normal thing no need to worry.
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