I feed all my fish, including the wrasses (sixline and a Lubbock's fairy wrasse, not in the same tank), as much variety as possible. They're primarily carnivores and love Hikari Marine 'S' pellets, mysis, brine (gut-loaded spirulina and HUFA varieties aren't total junk food IMHO), bits of silverside, marine formula, angel formula, Cyclop-eeze, shrimp, squid, etc. I find they both like nori as well - when the angels let them near it, both my wrasses will eat seaweed to the point of bursting!