Did you get him from Lossie chish? Looks like the same as mine. I was sold it as a gold spot but no one here thinks it is. Got a thread about it somewhere if you want me to go look?
I dunno, it doesn't have much data at all about it so it must be a fairly new or rare species- you should tell the lfs you got it from what it is now you know. Most vegetarian plecs need a certain amount of protein in their diets, try feeding it some de-shelled prawns and see if it likes them .