Help identifying growth

[BeachWood Tile]

I was noticing my coral not doing so well and went to inspect. I found this growth and can’t find anything that might resemble it online. Any help identifying would be great appreciated.

 

[vetteguy53081]

I was noticing my coral not doing so well and went to inspect. I found this growth and can’t find anything that might resemble it online. Any help identifying would be great appreciated.

It’s extremely hard to determine most anything outside of water
Please retake under white lights within water

 

[BeachWood Tile]

It’s extremely hard to determine most anything outside of water
Please retake under white lights within water

It’s not visible in the tank. I look at these guys for hours sometimes and didn’t see it until out of water but today I’ll do my best.

 

[vetteguy53081]

It’s not visible in the tank. I look at these guys for hours sometimes and didn’t see it until out of water but today I’ll do my best.

Possible mesentrial filaments but not certain