Fish Guide

Domino Damsel   (Dascyllus trimaculatus)
Family: Pomacentridae (Damselfish)
Natural Range: Red Sea, Indian and Pacific Oceans
Depth: 3 to 179 ft.   Size: 5 in.   Jumps: No   Space: 55+ gal.
Reef Safe: Yes   Care Level: Easy   Temperament: Caution
Diet: Algae, copepods
Natural History: Domino Damsels are found on lagoons, reef faces, and slopes. Juveniles are observed to associate with anemones whereas adults associate with stony corals. Juveniles often form shoals. Adults occur singly or in small groups. Adults associate with stony corals and their presence benefits them likely be providing nitrogenous nutrients to the corals.
Husbandry: Domino Damsels can be very aggressive as adults and should not be kept with peaceful tankmates. They benefit stony corals by helping to circulate water throughout the coral body and their waste products likely benefit the coral as well.
Reproduction: Males of this species engage in courtship rituals to attract mates. Eggs are laid at the base of rocks or Tubastrea tubes.

AKA: Threespot Dascyllus

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