Luciano Candisani / French Angelfish (Pomacanthus paru) pair, Rocas Atoll, Brazil

Fred Bavendam / Emperor Angelfish (Pomacanthus imperator) in its juvenile color phase, Bali, Indonesia

Pete Oxford / Gray Angelfish (Pomacanthus arcuatus), Belize Barrier Reef, Belize

Pete Oxford / Gray Angelfish (Pomacanthus arcuatus), Sian Ka'an Biosphere Reserve, Quintana Roo, Mexico

Fred Bavendam / Six-banded Angelfish (Pomacanthus sexstriatus), Bali, Indonesia

Fred Bavendam / Emperor Angelfish (Pomacanthus imperator), Thailand

Scott Leslie / French Angelfish (Pomacanthus paru) portrait, Nova Scotia, Canada

Scott Leslie / French Angelfish (Pomacanthus paru) head close up, Nova Scotia, Canada

Norbert Wu / Common Squirrelfish (Holocentrus adscensionis) Pennant Bannerfish (Heniochus chrysostomus) and Emperor Angelfish (Pomacanthus imperator) near soft coral ledge, Raja Ampat Islands, Indonesia

Luciano Candisani / Gray Angelfish (Pomacanthus arcuatus) pair, Cozumel Island, Mexico

Birgitte Wilms / Map Angelfish (Pomacanthus maculosus) underwater, side view, Red Sea, Egypt

Norbert Wu / Emperor Angelfish (Pomacanthus imperator) close-up detail of patterns, Red Sea, Egypt

Norbert Wu / Emperor Angelfish (Pomacanthus imperator), Seychelles, Indian Ocean

Norbert Wu / French Angelfish (Pomacanthus paru) along coral wall, Saba, Caribbean

Fred Bavendam / Emperor Angelfish (Pomacanthus imperator), Bali, Indonesia

Norbert Wu / Blue-girdled Angelfish (Pomacanthus navarchus), Indo-Pacific

Norbert Wu / Scribble-faced Angelfish (Pomacanthus xanthometopon), Indo-Pacific

Fred Bavendam / Blue-ringed Angelfish (Pomacanthus annularis), Andaman Sea, Thailand

Pete Oxford / French Angelfish (Pomacanthus paru), Bonaire, Netherlands Antilles, Caribbean

Norbert Wu / Blue-ringed Angelfish (Pomacanthus annularis) in cave, Raja Ampat Islands, Indonesia