Rookie: The blue fish are blue/green chromis. Fish store said they were green chromis, but they look like blue to me.
DiscusKing & KrUnk: LOL... no, no steroids or anything like that... just brine/mysis shrimp with some garlic, vitamin C and Zoe. They weren't small when I got them, but they have grown a good bit... probably because they eat like pigs.