Yeah, I love that fish. I think top down is the best way to view them. They look like rainbows. I had one in a 125 gallon glass tank, but there was a visible difference between him and the one in the tub.
It's harder to take the photo though. I had to rely on a polarizing filter to remove the reflection on the top of the water and hope that the water didn't ripple too much and mess up the shot.