I have two stripped raphaels, and rarely see them, I believe they are nocturnal,...both of mine are just under six inches long, and look like they swallowed ping pong balls...............
And I agree it looks like a spotted raphael catfish
You are all 100% right. I never see him at all. My gf always thinks it is dead. haha. Nice looking if I ever get the camera out I will take updated photos.