What is this?

[Jtleland]

Found this strange pattern (eggs, mucus, worm,......?) on my powerhead this afternoon. Removed and cleaned the powerhead just in case, but I want to know what it is if I see it again.

Friend? Foe?

 

[T-J]

Snail eggs.

 

[Andresnyc93]

Nassarius snail eggs

 

[G Santana]

Someone loved your power head

 

[Jtleland]

Nassarius snail eggs

That's what I was thinking. I just wanted to make certain.