Hello, I recently started up a 40-gallon freshwater tank and is just about done with the nitrogen cycle. I have 15 rosy red minnows a couple of fake plants and general decorations (all fake, no real plants or wood). I feed my minnows once every 24 hrs just enough to get them all, and if they're constipated (doesn't happen often) every 48 hrs. Today I noticed a stringy poop/worm-like object hanging off of the pirate ship on the tank. There is no other sign beside this "poop worm" that would indicate a worm infestation in the tank. Please, someone, let me know what they think, thanks.