What are those?

[Linda4fish]

I woke up this morning and found these all over my snail tank.

Anyone have any idea what they are besides squirmy and worrisome

[Chick-In-Of-TheSea]

Could be detritus worms? (harmless)

@Colu @Odd Duck @nabokovfan87

[nabokovfan87]

They look like some kind of flatworm to me.....

[Brandon p]

Detritus worms., but there are so many. You may want a good gravel vacuum to remove some or add a a couple of small fish like endlers, neons. Since it’s a snail tank you can find less colorfully fish so you draw way from the snails. I would think that that many worms free swimming is taking away from the look of the snails 

[Colu]

Possible detritus worms not a 100% sure