I hope someone will help me to diagnose my angelfish. I’ve noticed white oval shaped dots on dorsal fins of my fish. I just looked at the video that I recorded a month ago and the spots were already there. I didn’t pay attention right away, just now I read that it can be Ich or some other infection. I want to a proper treatment but I am not sure of the diagnosis. I have attached the photo of my two angelfish, the black one is the one that has the spots.