They definitely look emaciated and loss of appetite and refusing to eat is a very common symptom of internal parasites.I’ll try, but I’m pretty sure it’s a starvation issue. I don’t think they had eaten for over a mothe and a half when I got them. I asked the owner what he feeds and he said he feeds pellets, so I asked him to throw some pellets in the tarpon tank, and they didn’t even look at them, leading me to believe they have not eaten in a very long time.