There are small, thin white worms inside my Cray and covering the sides of my tank! They are in its mouth, joints, and I can see them in its skull, and are causing it obvious discomfort (scratching its carapace, fidgeting, etc). Of the research I've done, one said that these are nematodes, and harmless, and another said that mild salt baths would get rid of them, but I'm really nervous, especially since I keep a RES in the same tank and I'm worried about what the effect on the turtle would be. Help!