The Sixline Wrasse is a beautiful addition to any tank. When very small, the Sixline Wrasse are safe with almost any fish that will not eat them, but as they get larger they become more aggressive. They may act aggressive towards peaceful fish, especially if inadequately fed or if it doesn't have many places to hide. They are not safe for invertebrates. The Sixline Wrasse diet should include frozen mysis shrimp, frozen brine shrimp, and also mix in some high quality marine flake and marine pellet food.