Needle like "hair" on live rock

[Chinook on a hook]

I've been having trouble with my zoanthids so last night I was looking for pests and found a ton these needle like stiff hairs on a piece of live rock. Does anyone know what it could be?

 

[dannyd_]

Could you post some pictures?

 

[Rick's Reviews]

I've been having trouble with my zoanthids so last night I was looking for pests and found a ton these needle like stiff hairs on a piece of live rock. Does anyone know what it could be?

Can guess but unable to verify without pictures

 

[Chinook on a hook]

Sorry I didn't sign in so I couldn't figure out how to post pictures LOL I also have these long hairs all over and these little branch looking hairs

 

[WheatToast]

Pictures are too blurry and the blue light makes it difficult to ID. Could we get images under white light (ex. with a flashlight)?
Last image looks like a benthic Foraminiferan though (and not a sponge due to the fine filaments, which are more visible in the 2nd image below); these are harmless filter-feeders.

 

[Chinook on a hook]

Here is a better picture they only come out at night so I have to take a video for light and then screenshot the video they are in the purple on the bottom?

 

[i cant think]

Here is a better picture they only come out at night so I have to take a video for light and then screenshot the video they are in the purple on the bottom?

+1 on benthic foraminiferan

 

[WheatToast]

+1 on benthic foraminiferan

To make sure it’s not a sponge, try seeing if the growth is squishy. If it is hard, it’s a Foraminiferan.