Help! What's growing on my rock

Taelee1127

New member
So I bought a piece of live rock with zoa and a mushroom. This brown polyp is growing all over it and seems to be spreading everywhere. Thanks in advance.
 
The photo isn't clear enough to be sure, but they look like a type of hydroids to me. If so, they're a pest, and the only way I've been able to get rid of them is to dig them out of the rock with a screwdriver, or chip that chunk of the rock off.

Kevin
 
Must be a new user that posted an external link..
This site "jails" those posts and normal users cannot see it until a moderator approves them (could be blocked for up to 24 hours or so). We can see the response from Anemone but can't see the original post (at this time)

(Anemone was able to respond because he is a mod and can't tell that the post is blocked from us all.. PM being sent to fix that)
 
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