when you watch this, what do you see? a fish about to swim away? you can see every detail, each fin and scale. look again. it's an astonishing trick of the eye. a masterful approach to painting developed by this japanese artist. for more than a decade, goldfish have been his unlikely muses. he can observe them for hours at a time. >> translator: that's how they really get engraved in my mind. on the surface, goldfish are only red and white, but if you look very closely, you can see the rainbow colors inside. >> a clear resin acts as his canvas. >> translator: first i pour a thin layer of resin into a container.