Hello everyone, my dad has been raising fishes for years now and never really experienced any diseases (maybe some minor ones but nothing noticeable) but then a month or two ago these things (LOOK AT THE LINK ON THE BOTTOM FOR PICTURES) starting growing on my fishes. I don't understand what they are, I thought they were icks but then this is an entire patch of white spot not just tiny white spots. There are also black formations of the faces on my fishes. I have blood parrots and my dad has been changing the water, raising the temperature and adding salt, nothing seems to be working. Every other day I see a fish die and I want that to stop. Can someone please tell me what my fishes have and what I can do to help them? *I have approximately 50+ gallon tank, I only took them in such a little corner because they tend to hide together in groups when they're scared. tl;dr blood parrots weird disease growing pics below, what is the disease? LINK TO PICTURES BELOW fish help - Imgur I appreciate ANY help I can get, I just want the fishes to live, thank you.