Indo-Pacific
The heart of marine biodiversity — the Coral Triangle, Great Barrier Reef, and surrounding seas hold more reef species than anywhere else on Earth.
1,073 species
Sub-regions
Griffis Angelfish
FishApolemichthys griffisi
A rare deep-reef angel that almost never makes it to the hobby.
Guineafowl Puffer
FishArothron meleagris
A bold, intelligent puffer that will learn your face and test your corals.
Haddon's Carpet Anemone
InvertStichodactyla haddoni
A vast, velvety carpet anemone that hosts clownfish and dominates any reef bed.
Hairy Mushroom Anemone
CoralRhodactis indosinensis
A fuzzy, forgiving mushroom coral that thrives where other corals struggle.
Halfbarred Goby
FishAmblygobius semicinctus
A peaceful, burrowing goby that tidies sandbed detritus in calm reef systems.
Halfmoon Angelfish
FishPomacanthus maculosus
A bold, large-growing angel that thrives where other reef fish fear to tread.
Halfmoon Butterflyfish
FishChaetodon lunula
A bold, raccoon-masked butterflyfish that prowls reefs after dark.
Hammer Coral
CoralEuphyllia ancora
Beautiful LPS coral that throws out aggressive sweeper tentacles after dark.
Hammer Coral
CoralFimbriaphyllia ancora
Flowing, hammer-shaped tentacles give this LPS coral a striking, anemone-like presence.
Harlequin Shrimp
InvertHymenocera picta
A boldly patterned reef shrimp with a surprisingly specialized appetite.
Hawaiian Hermit
InvertCalcinus laevimanus
A tiny reef cleaner with bold zebra-striped legs and a peaceful attitude.
Hawaiian Kole
FishCtenochaetus hawaiiensis
A rare Pacific bristletooth with juveniles that look like a completely different fish.
Hawaiian Plate Coral
CoralLeptoseris hawaiiensis
A low-light reef wall dweller that thrives where most corals won't venture.
Hawaiian Whitespotted Toby
FishCanthigaster jactator
A bold little Hawaiian puffer with a voracious appetite and plenty of personality.
Headband Humbug
FishDascyllus reticulatus
A bold little damselfish that claims coral heads as its personal territory.
Head Coral
CoralDipsastraea favus
A bold, geometric coral that brings reef-flat character to the home aquarium.
Hedgehog Coral
CoralEchinopora ashmorensis
A boldly sculptural reef coral with an unusual twisted, tubular growth form.
Hedgehog Coral
CoralEchinopora forskaliana
A knobby, pink reef builder with delicately sculptured corallites worth a close look.
Hedgehog Coral
CoralEchinopora fruticulosa
A branching, dome-forming coral with a distinctly spiny, sculptural look.
Hedgehog Coral
CoralEchinopora gemmacea
A versatile reef builder with a bumpy, hedgehog-like surface texture.
Hedgehog Coral
CoralEchinopora hirsutissima
A spiny, textured coral with a personality as bold as its surface.
Hedgehog Coral
CoralEchinopora horrida
A gnarly, branching coral that builds impressive colonies in sheltered reef zones.
Hedgehog Coral
CoralEchinopora mammiformis
Cream plates and ghostly blue corallites make this sprawling coral unmistakable.
Hedgehog Coral
CoralEchinopora pacifica
A textured Pacific coral with detailed plating and a surprisingly manageable care level.
Helfrich's Dartfish
FishNemateleotris helfrichi
A deep-reef gem that hovers and flicks its tall dorsal fin like a flag.
Honeycomb Coral
CoralGardineroseris planulata
A shade-loving encrusting coral that thrives where others struggle.
Hood Coral
CoralStylophora kuehlmanni
A spiny-branched Red Sea coral with tubular corallites and daytime-active tentacles.
Hood Coral
CoralStylophora madagascarensis
A compact, fast-branching SPS coral with subtle hood-tipped branches.
Hood Coral
CoralStylophora mamillata
A compact encrusting coral built for vertical reef walls and high-flow zones.
Hood Coral
CoralStylophora wellsi
A compact, knobby branching coral from wave-swept Red Sea shallows.
Horned Bannerfish
FishHeniochus chrysostomus
A bold-banded bannerfish with a dramatic dorsal fin and reef-roaming habits.
Horned Bannerfish
FishHeniochus varius
A deep-reef oddity with a hump, horns, and bold black-and-white contrast.
Horseshoe-tailed Dottyback
FishPseudochromis tapeinosoma
A compact, crevice-loving dottyback with a wide Indo-Pacific range.
Humpback Grouper
FishCromileptes altivelis
A boldly spotted predator that actually begs at the glass for food.
Humpback Puffer
FishPao palembangensis
A freshwater puffer from Southeast Asia with serious teeth and serious attitude.
Hump Coral
CoralMontipora tuberculosa
A textured encrusting coral whose papillae tips catch the light in unexpected ways.