Stringy thing, hydroid or algae/poop?

[discostew]

Is this just algae/waste or a hydroid? Dry rock some corals and fish.
There’s a few spots in tank with this. Some pieces did get kicked up into water column.
Hoping just waste/algae

 

[WheatToast]

Pictures?

 

[discostew]

Sorry it didn’t upload.

 

[discostew]

 

[discostew]

Hard to see with blues and movies won’t upload. The whiter picture doesn’t look like most. They are stringier and clearish I’ll try and upload a vid if i can

 

[discostew]

 

[discostew]

Here is a better one