I’m so sorry that you are getting conflicting information. I know how confusing that can be. We all offer advice based in our own experiences and sometimes they are different. I don’t believe previous poster noticed the spot on the body since he only referenced the orange line. If you look at the body there is necrosis beginning where spot is. It will continue to get worse and start sloughing off. Based on my own experience, I really do encourage you to put it in a separate tank or euthanize it. The necrosis only gets worse and will eventually eat away at the body. If you check out some of the past posts on NTD on this forum, you can see pics of the necrosis as it advances. Best of luck!