Small white hairs on zoa frag

[antman327]

Recently noticed small white hairs on one of my zoa frags. I was wondering what these were and i can’t seem to come to a conclusion on what these possibly may be. I am also wondering on what type of dip i should use to get rid of these hairs aswell.
Thanks!

 

[Reefkeepers Archive]

Could be some sort of sponge, my zoa has a similar thing

 

[antman327]

Have they been affecting your zoas, or are they just harmless.

 

[vetteguy53081]

Recently noticed small white hairs on one of my zoa frags. I was wondering what these were and i can’t seem to come to a conclusion on what these possibly may be. I am also wondering on what type of dip i should use to get rid of these hairs aswell.
Thanks!

Pics dark in blue lighting but may be filaments. Often an iodine dip or peroxide dip will address this

 

[Reefkeepers Archive]

Have they been affecting your zoas, or are they just harmless.

Not at all for me (in fact there used to be sponge completely encrusted the stalk all the way to the crown) zoas are resilient, I'll see if I can get a photo of mine

 

[littlebigreef]

Recently noticed small white hairs on one of my zoa frags. I was wondering what these were and i can’t seem to come to a conclusion on what these possibly may be. I am also wondering on what type of dip i should use to get rid of these hairs aswell.
Thanks!

There's a few threads on this as it pops up now and again. I think the consensus is that they're some sort of hydroid and h2o2 dips/diluted swab applications will knock them out.