Ok, this might be a silly question but what does a betta's waste (poop) look like? There is a very small worm type creature wrapped up like a spiral on the bottom of his bowl that I just noticed today. I've only had him for 2 weeks and only give him betta food so I don't think it is his food, but some of the food that fell to the bottom is getting moldy (I'm planning to change the tank tomorrow). What in the world could that thing be? He seems otherwise healthy and active, and even blew his first bubblenest for me today!
Thanks for your help,