I noticed today a bunch of tiny little white/transparent-ish things, about one or two centimeters long, in the sponge of Beelzebub's filter. There are about four or five floating around the water, but otherwise they are ONLY in the filter sponge, not sticking to the walls or the floor or his basking dock. I shut the filter off for a couple of minutes to see if it was just weird dirt and the force of the filtration was making them look like worms or if they move on their own, and most of them do. I've been researching the types of infestations that can occur in an aquarium, but none of the descriptions match what I see.
I cleaned the tank yesterday completely. I scrubbed EVERYTHING, repeatedly. I even took the filter apart to scrub each piece separately, and I used a power washer to rinse everything. B is acting normally (in fact he's finally warmed up to me after a month!), and there doesn't appear to be anything wrong with his skin or shell.
What ARE these things?!
