My fiancé and I left for the holidays (about 2 1/2 weeks) and came back to find this really weird, thick white worm wriggling around on the floor of the aquarium. Granted, there’s a lot of algae build-up that’s being cleaned out today, but we’ve not seen anything like this worm before. Only other worm we have is a feather duster that is now perched on the back of one of our hermit crabs shells. But we like that guy so we left him on the shell lol. So does anyone know what this could be? Bad quality photo, but the worm has tiny black dots going down the side of it, long-ways.