What are these things?????

[Thresher's Reef]

Hey guys! I got zoanthids in, dipped them, and yet these little work with hair looking things showed up on one of my zoanthids. I've already had an aiptasia on another and dealt with him using F-Aiptasia but it didn't look like these which is why I'm not thinking it's Aiptasia, but I'm also a beginner and could be wrong. Can anybody tell what these are please??? Sorry for the bad quality pics it's really hard to get a good one with them being so tiny!

 

[mww00ds]

hard to tell but could be some kind of hydroids

 

[moldos]

some form of hydroids probably, i had them for a period of time but they went away on their own and didnt seem to bother anything