It sounds like aptasia and they are not a good thing.

Ken D

(JJOPP) wrote in message ...
Hi,

I have some small brown "anemones" that seem to pop up like weeds on live rock.
They don't harm anything, and generally reach about an inch or inch and half
tall. They seem to eat whatever frozen food or flake that happens to come
within the reach of the tentacles. I was just curious what they are called so
I could research to find out more about them.

Thanks for any info.

JJ