Long zig-zag on glass

[|sCRIBe|]

I just noticed this on the glass in the upper rear corner. Any idea what this could be?

 

[DLHDesign]

Snail poop. Scrape it off and let your filters catch it (and/or fish eat it).

(Edit - I'm wrong. See below...)

 

[kschweer]

Those are snail eggs. No need to worry.

 

[TheEngineer]

Snail eggs Do you have cerith snails?

 

[TheEngineer]

jinx!

 

[DLHDesign]

Eggs?!? Shoot - I've thought they were poop all this time... :-|

 

[madweazl]

Yep, cerith snail eggs.

 

[|sCRIBe|]

Yes I do have cerith snails. Thanks for the id I’ll leave them be

 

[Mark Gray]

Your snails have been busy

 

[Jeepguy242]

Bow chicka wow wow