Unknown coral or hitchhiker on new live rock

[bliz2020]

I purchased a live rock from a saltwater store that had a few Kenya trees on since they would not sell just the corals since they were attached to it . After rescaping the tank about a month later I felt a warm burn feeling , like if I was stung on my finger . After looking over the rock I noticed a red bubble with some white tips . Unsure exactly what this is . Hoping if someone would be able to tell me what this is . Thanks

 

[Brofessor]

Couldn't see it at first, thought you just took a picture of coralline algae. But it looks like a little anemone of some sort.

Keep an eye on it and see if it moves, if it opens or closes, etc. Some clearer pictures would help, too.

 

[bliz2020]

Sorry about that , sorta hard to get a clear picture with Iphone . I hope this helps a little better .

 

[reef lover]

Hard to tell but i lean toward ball nem,cornyactis.

 

[Lovemyreef2015]

Agree with reef lover. Ball anemone.