Hi im new and i was recommended here to ask a question. So, i have this goldfish which looks like it has no colour, like it is pink and you can see the gills through the gill cover and it has black eyes. Recently he has been getting black on him. Like everywhere, not ammonia burn, and a tiny bit of orange at the ends of his tail. I have a photo of him last month which ill add . I wanted to know if it is just colour coming through. He recently got a new food which is colour enhancing, and got a new light. He is very active and loves too eat!!