It has moved around in the glass... it stretches and shrinks like a worm, but it attaches to the glass like a snail/slug... don't know how to explain it better...Looks like a translucent leech... not sure if such a thing exists... is it stationary? Leeches move like a ribbon through the water.
That's exactly why I always lock the fish room doors at night!Yeah I know what that is, it one of those things that creeps out of the tank at night, tracks your sent & homes in on your Meatus!
I suggest you go with the thread title ....
it stretches and shrinks like a worm, but it attaches to the glass like a snail/slug... don't know how to explain it better.
Definitely a leech, I've never seen one quite like that, but a lot of leeches eat snails. <"Helobdella stagnalis"> looks a likely ID.From what I found out so far, it seems to be a "snail leech" and it eats snails