EDIT: it was actually just a coating on the outside of the roots that could be gently rubbed off. I hope I didn’t aggravate the plant from doing that. The water it was soaking in turned orange/yellow after that! I think maybe it was a pigment in the potting medium. Picture in comments! —— Repotting a phalaenopsis orchid and I just wanted to check - are these roots healthy? They look so dark but it’s almost like a callous on it. The rest of the roots look green and healthy. I don’t need to trim these do I? What if the dark section is in the middle of the root? Thanks in advance!