Anybody recognize this

[dharmon]

Noticed this situation this morning, any thoughts?

 

[rayadog]

The wave in the sand? Don’t quote me but looks like a worm trail

 

[dharmon]

The wave in the sand? Don’t quote me but looks like a worm trail

Yes the black line there, doesn’t exist anywhere else and just noticed it this morning

 

[Gregory Stephens]

I think it is just a bacterial colony

 

[dharmon]

So no worries?

 

[StartingATank]

My first guess when I saw it was spaghetti worm, but then again, I am not good at some sand ids