Ok. It’s just the color. It’s possibly an angelfish. In my quest to photograph it’s problematic with the lighting. I don’t use flash… too many hot spots. If the lighting is right you get good color. And if you’re backlit, you don’t. I can’t really ask the fish to pose. Generally they are wary and don’t let me maneuver too much. If you’re too far away, the color balance is off, or the water is too murky. So I have a lot of pictures, but you don’t always get shots this clear.