Need help

[maxs]

I need help identifying this foreign stringy substance that appeared with in hours. All of a sudden this stuff was strung all of my rocks and stuck in my wave maker. I’ll attach photos and videos

 

[maxs]

 

[maxs]

 

[maxs]

I need help identifying this foreign stringy substance that appeared with in hours. All of a sudden this stuff was strung all of my rocks and stuck in my wave maker. I’ll attach photos and videos

 

[Ridgeback1]

Vermetid snails maybe???

 

[rayadog]

First guess is worm mucus like above ^