First off, apologies that I don't have a pic to accompany this at the moment but will try to add one later. Our betta Feathers II has a VERY dark red, almost black, body color. His fins are a lighter red color except for the tips, which are dark, more similar to his body color. It makes it look sort of like the pics I see here of fin rot but as far as I can tell the edges of the fins still look even and uniform and I do not notice the dark part progressing, although I intend to monitor it more carefully. We have only had Feathers II for about 1.5 weeks so I can't say how long this has been going on but this coloring pattern was present when we got him and I don't think it has changed. Is it possible to have this type of pattern of coloration in a normal, healthy fish? I have seen the photos of mustard gas bettas but it seems like they are usually yellow/blue and Feathers II is dark red. Thanks!