Evansi Anthias - Sri LankaMirolabrichthys evansi Evansi Anthias are also sometimes known as Evans, Yellowback or Yellowtail Anthias. They are a strikingly beautiful and peaceful fish that fits well in reef aquariums. While generally calm, males may exhibit territorial behaviors toward one another, so its best to keep one male with a group of females to foster a harmonious environment. Their bright pink and yellow color create a unique and vibrant addition to any aquarium.