Hi fish friends! So I have an albino cory who is fairly new to me, and he is displaying some issues. He seems to almost have a coating on him and his shine is quite dull. I have three other corys with him and they are all fine and happy. Sadly I had to do an fish in cycle due to unforeseen circumstances. He also has been lethargic and I do not believe he has been eating but I am not 100% sure, may just be me not observing him actively eating. The darker picture is my healthy albino and the brighter pictures are the cory I am concerned about. Also they eyes look weird because of my flash being on to get a good picture, his eyes look normal. He also has a tiny tiny red spot on his head but its very very small. I can't find anything to help me figure this out, so any and all ideas and suggestions are greatly appreciated.
Ammonia 0ppm
Nitrite 2ppm (high I know I have been dosing well with stress guard and am working on it and it was an emergency situation to do a fish in cycle along with daily 10% water changes)
Ph 7.5
Temp 78-80