I've had this clownfish for about 6-7 years now. When I got it it was pretty orange, over the years it had turned mostly black. It seemed to have a grown spirt lately because it was always much smaller than the other. Does this look like a case of brooklynella? It swims and eats just fine. I don't really see any mucus or heavy breathing. I'm just wondering if its something normal or not. Thank you for the help.