Hello, I have been unable to identify this species of fish in my tank: They look like miniature angel fish. I don't think they are babies, because when I first got them they were smaller and didn't have so much color. Their backs have turned light yellow, their stripes have gotten more pronounced, and their eyes turned red. Also their anal? fins have these little hook structures on the tips now which weren't there before. Can anyone tell me what these fish are? Thanks!