The Americas
From the Amazon's blackwater basins to Caribbean reefs — the Americas hold the most popular freshwater biotopes and a wealth of Atlantic and Pacific saltwater life.
1,013 species
Sub-regions
Herotilapia multispinosa
FishArchocentrus multispinosus
A tough Central American cichlid with serious parenting instincts and surprising heat tolerance.
Hidden Cup Coral
CoralPhyllangia americana
A shade-loving cup coral that thrives where other corals fear to go.
High-back Headstander
FishAbramites hypselonotus
A bottom-grazing oddball that swims nose-down and grows bolder with age.
Highfin Apisto
FishApistogramma hoignei
A dwarf cichlid from the Orinoco with cave-breeding instincts and complex taxonomic intrigue.
Hispaniolan Gambusia
FishGambusia hispaniolae
A tough livebearing minnow from Hispaniola's brackish spring habitats.
Honeycomb Plate Coral
CoralPorites colonensis
A tiered plating coral with an understated, textural elegance that rewards patient keepers.
Hoplo catfish
FishMegalechis picta
A mud-burrowing South American catfish that breathes air and builds bubble nests.
Horny Coral
CoralParagorgia arborea
A deep-sea giant with bubblegum-pink branches found across the world's cold oceans.
Huanta Cory
FishCorydoras fowleri
A long-snouted cory with a feisty streak and surprisingly long lifespan.
Huber's Knife Livebearer
FishAlfaro huberi
A sleek Central American livebearer built for fast, clear currents.
Humble Club Coral
CoralClavularia modesta
A low-maintenance soft coral that thrives where others struggle.
Humpback Limia
FishLimia nigrofasciata
A livebearing oddity from Haiti with a distinctive fatty hump on mature males.
Hump Coral
CoralPorites panamensis
A compact, lobed Pacific coral with a smooth greenish-grey profile.
Imitator Cory
FishCorydoras imitator
A long-lived Rio Negro cory that schools with its color-alike cousins in the wild
Inca
FishApistogramma baenschi
A beginner-friendly dwarf cichlid with big personality and bold crescent markings.
Indigo Hamlet
FishHypoplectrus indigo
A reef-dwelling hamlet with bold indigo patterning and a surprisingly easygoing nature.
Isabelita Pleco
FishHypancistrus debilittera
A compact, cave-dwelling pleco with a big attitude toward its own kind.
Isorineloricaria villarsi
FishSqualiforma villarsi
A rare Venezuelan pleco with surprising peaceful manners and air-breathing tricks.
Isthmian Priapella
FishPriapella intermedia
A sleek Mexican livebearer that leaps clear of the water to catch insects.
Jack Dempsey
FishRocio octofasciata
A bold, brawling cichlid named after a boxing legend for good reason.
Jaguar Catfish
FishLiosomadoras oncinus
A boldly patterned nocturnal catfish that fiercely guards its chosen hideout.
Jaguar Cichlid
FishParachromis managuensis
A bold, personable predator that owns every tank it inhabits.
Jaguar Guapote
FishParachromis motaguensis
A bold Central American predator that holds its own against anything in the tank.
Jamaican Killifish
FishCubanichthys pengelleyi
A rare Jamaican killifish with clear-water roots and a reputation for challenging its keeper.
January Tetra
FishHemigrammus hyanuary
A peaceful little tetra that looks like a stretched head-and-tail light fish.
Jello Band Catfish
FishAguarunichthys torosus
A powerfully built Peruvian catfish that treats smaller tankmates as a meal.
Jewel Anemone
CoralCorynactis parvula
A jewel-toned colonial anemone that thrives in low-light reef corners.
Julii Cory
FishCorydoras julii
A spotted little catfish that blinks, breathes air, and belongs in every peaceful community.
Julii Cory
FishCorydoras trilineatus
Commonly sold as julii cory, this peaceful armored catfish is a beginner-friendly gem.
Jumbie Teta
FishAncistrus cf cirrhosus
The bristlenose catfish: a compact, algae-grazing workhorse with a face only a hobbyist could love.
Jumbo Cory
FishCorydoras multiradiatus
A large, long-snouted cory with a fascinating air-breathing trick up its sleeve.
Jutai
FishApistogramma sp. "Kelleri"
A mouthbrooding dwarf cichlid with a remarkably flexible approach to raising its young.
Kane's cory
FishCorydoras kanei
A small, spotted cory from blackwater rivers that breathes air and charms beginners.
Katvis
FishPimelodus ornatus
A bold, predatory catfish with toxic spines and serious schooling instincts.
Keyhole Cichlid
FishCleithracara maronii
A gentle, shy cichlid whose camouflage trick is straight out of a nature documentary.
Killifish
FishAustrolebias adloffi
A tiny annual killifish that races through its entire life cycle in months.