Here's the source of the white discus picture: https://www.instagram.com/discus_addiction_worldwide/
Again, I'm not stumping for this page or the authenticity... I don't know if it's fake, but it's certainly a play on the old fisherman's trick of holding the fish closer to the camera. The wrist on the hand holding the fish is pretty significantly bigger. The holes in the net around the fish are clearly much closer to the camera than the other parts of the net.