oh crap - I hope I didn't hurt this one pulling it from the water! Ugh - well, back in he goes.
I don't have many, yet - but I have 2 in a spot where only 1 was a week or so ago, if I get too many, you'll be sure to know
With that said, I've seen a few other "tentacles" hanging out poking their heads out behind things like mushrooms, some seem a lighter colour, and I doubt I'll be able to get a good pic of them, but I'm assuming I have as little to worry about with them as well?