The sixline wrasse is very easy to keep. They eat almost anything...flake, mysid, cyclopeeze, enriched brine. They WILL eat a small shrimp if you put it in your tank. They can jump, so keep a lid on. Also, these guys are really great swimmers and a wonderful addition to a tank. They really need at least a 30 G gallon with room to swim. Some pix:
Avoid same species fish if possible unless they are known mated pairs or known to school (shoal) together. Even different species fish within the same family can become aggressive towards each other. SH