Things on rocks...

[reefgeek]

Tank is cycling, these show up
What is the common name for these guys POLYP ?

Love your new guy

[Tom McKenna]

They look like mushrooms but hard to tell

[JustDavidP]

I downloaded, adjusted, sharpened, and can say that they are the typical 'brown button polyps' that you see in the trade. They are, for the most part, very hearty when it comes to photosynthesis or the lack thereof and typically live through the liverock handling/curing process.

Dave

[reefgeek]

Thanks for your hard work, and diligence !! Thats what I thought, as I expected nothing less during the tanks infancy. Thanks for the ID

LOVE your new guy