Yes, I'm trying to fatten it up right now. That's how I got it. It didn't look too skinny to me and seemed pretty active at the LFS I got it from.
It wouldn't eat the pellets I threw in at first (NLS, Omega One) and would only eat bloodworms the first few days. But I bought some Carnivore pellets and it eats that and seems to like those pellets a lot. Doesn't seem like there's any internal parasite problems. I think he just didn't eat a lot of pellets at the LFS and was fed mostly bloodworms.