Prognathodes dichrous also commonly referred as the Hedgehog butterfly or Bicolor butterflyfish is known only from the Southeast Atlantic at Saint Helena and Ascension islands; encountered in shallower water in caves or at the bases of overhangs, associated with the seamounts around both islands. Never seen in the trade, in my opinion better it should be left on the reef.
Butterflyfish are not recommended for reefs as they will pick at or eat a wide variety of corals, fan worms, and other invertebrates. Most Butterflyfish are known to pick at Aiptaisia, a parasitic anemone.
Mid Atlantic, St. Helena and Ascension Islands; 16 cm; extremely rare
Coffee brown with a white area; very close to P.obliquus from St. Paul’s Rocks, off Brazil; scarce in market, only a few have been imported; I took this in Saitama; easy to keep but adapts cooler waters only
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