oh don't you worry, he has 9 cory buddies in the tank with him now - 4 bronze, 1 emerald, 2 albino, and 2 barbatus. me thinks he's claimed the emerald for his new wife already, lol!
he could be stunted. as far as i know his previous owner only had him, no other cories, and although i know he lived in a tank that was 20 something gallons (can't remember exactly the size prev owner said), i don't know what his diet was, he's approx a year old, and original source was her hubby's fishy friend. i have a hunch he most likely hid a lot due to having no other cories to keep him company and as a result may not have eaten enough, hence the small size.