The biggest one eats everything, pellets, flakes, frozen, and fresh chopped shrimp, the little ones (1") eat frozen brine and shrimp. Btw they love to pick on the nori sheets for the tang.
JJ in my personal experience, the leopard wrasses I bought from aquarium village are the healthiest and strongest, plus they eat pretty much everything, I think Andy feeds them different stuff while acclimating.