The Debelius Fairy Wrasse is commonly referred to as the Redfin or Koi Fairy Wrasse. The Debelius Fairy Wrasse is a reef safe species and can be kept in a tank including sessile invertebrates, and mollusk. The Debelius Fairy Wrasse does not harm corals, polyps or most invertebrates. The tank should contain plenty of rocks and caves to hide when needed, as well as a tight lid to prevent escapes.