Unfortunately my G.semifasciatus passed away, yes, it is the one that you can see as my avatar. The story with this fish is a bit unusual, and it happened about 7 years ago. Here in Mexico we do not have many options to buy quality fish, but there are. The fish you see in my avatar, I asked a lfs with whom I had never asked for fish, I told him that I was looking for a female Spotbreast and when he told me that he had my fish, then I found a female G.semifasciatus. I honestly didn't feel ready for this fish, but it was already there, and it was for me, so I took it and threw it in my 90 gallon tank, and 3 days after pop eye disease, then here I get the answer for one of His questions, even though the other fish were fine, the quality of the water was not enough for my Genicanthus, and on the fourth day after having it, I was ready to take it out and start its treatment in a hospital tank and I just woke up dead. I learned that Genicanthus angels need great water quality and abundant waterflow. To be honest, I have no idea where they got this fish in my lfs, not to mention the owner's very bad knowledge, since he confused a G. melanospilos with G.semifasciatus, and paid what a Spotbreast is worth, so from that moment I realized there wasn't that much quality there, and I didn't get any kind of Genicanthus after that either. Compared to diseases I'm sure that any large angelfish is more sensitive to them, and since I got a fish vendor that gets quality fish, I have seen considerably higher prices, but it is also considerably higher quality, so it's worth paying for.