I recently got a Coral Beauty angelfish, its still very young. He rarely come out but today I noticed that he has white vertical stripes that were not there before, they start where the eye is at and its in only one side of the body. I can't take pics cuz no camera. Plus he is always hiding, he only comes out to eat and them goes back to hiding. Right now he s in a 40g but would be moved to a 75G probably by next week as soon as the new tank is cycled. The 40g is cycled, no ammonia, no nitrate, salt is at 1.021 pH also seems fine and the temperature too. Any ideas what could be causing these stripes to appear?