Fluorescent ring with central dot

[mp2022]

Hi all - I have had a saltwater reef tank going for a couple weeks now ~ 40G. I used live rock, sand, and tank water I got from a local coral aquaculture company/store. I have a couple of soft corals, 2 clowns, a dotty back, and some inverts. Parameters are fine and animals doing well. I started noticing these circular dotted fluorescent things on one of the pieces of live rock with a central fluorescent dot as well - they seem to have a fleshy base when I inspect them with normal light but they are pretty small and its hard to get a close look. There are at least 4 or 5 that I can see. There are also these separate branch like projections coming off the rock (2nd photo). Any ideas what these could be? Thanks in advance!

 

[Crabs McJones]

Ball anemone? Based off the second pic. Can you get a pic under white lights or does it retract in the light?

 

[mp2022]

Ball anemone? Based off the second pic. Can you get a pic under white lights or does it retract in the light?

Thanks for your response! I can get a side view hard to see anything looking top down. First pic is a side view of one of circle things. Second picture shows the branch/tree and another side view of the circular organism. Thanks.

 

[mp2022]

 

[Crabs McJones]

Yup, Ball anemone for the lower arrow, hydroids for the upper arrow. ball anemones are pretty much harmless. the hydroids usually die out on their own over time.