Have you found something interesting living in (or invading) your aquarium?
While doing water changes this weekend, I decided to snip off a piece of guppy grass from my mutt guppy tank and take a closer look at the bryozoan colony living with them. They aren't crazy about being moved and close up for a bit, but open back up and fan around once the water settles. I can't confirm they are plumatella repens, as I've read they are incredibly hard to identify, but that's what I've been calling them.
And a bonus photo of a little alien nymph hitchhiker in one of my old tanks.
What do you have coexisting with your fish and inverts?