You speak Spanish, Jason? The only reason I know is that a friend of ours has a dog nicknamed Gordo and she explained what it means.
That's about typical.
Raphs are feed hogs, both kinds, but perhaps spotted ones are often rounder. Short term it seems doesn't affect their health. But long term, I wonder... Too few people are able to keep any fish long term, myself included.
If someone really wanted to know, they'd need to comb MFK, Planet Catfish, and other forums, YouTube, FB, etc... for info on the longest-lived raphs and check out their tummy and see whether there is any correlation.