Is it normal for a Rapheal cat to have a white rustic looking head? DOn't think it's ick, the rest of his body doesn't have this white stuff on it.. Trying to get a pic but the little ****er wont come out
I fail to note a significant difference between the looks of your raph and these catalog looks http://www.planetcatfish.com/common/species.php?species_id=880
I think your raph appears healthy and looks good.
The whiteness on closer inspection is caused by discrete bumps of, IIRC, sensory nature or could be merely the trait of their skin - they are not called armored catfish for nothing
Good job with this cat.