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.
765 species · freshwater
Sub-regions
Golden Pike-characin
FishBoulengerella lucius
A torpedo-shaped ambush predator that outgrows most home aquariums fast.
Golden Tetra
FishHemigrammus rodwayi
The golden color isn't natural. It takes a parasite to unlock it.
Golden Tetra
FishHyphessobrycon roseus
A tiny, rosy schooling tetra that thrives in peaceful community tanks.
Golden Vampire Pleco
FishLeporacanthicus heterodon
A fang-toothed South American pleco with a surprisingly manageable personality.
Gold Nugget Pleco
FishBaryancistrus sp. "Cf Xanthellus"
A gold-spotted Xingu pleco with a temperament that gets feistier with age.
Gold Piranha
FishSerrasalmus maculatus
A fin-biting South American predator that's actually one of the easier piranhas to keep.
Goldstriped Characin
FishCreagrutus beni
A little-known Bolivian characin that rewards patient keepers with quiet charm.
Granulated Catfish
FishPterodoras granulosus
A gentle giant that grazes on rainforest fruit and needs serious space.
Green Cabomba
PlantCabomba aquatica
Feathery South American stem plant that thrives in groups and rewards moderate light.
Green Cardinal
FishParacheirodon simulans
The neon's lesser-known cousin, with a greener stripe and wilder roots.
Green-gold Cory
FishCorydoras melanotaenia
A long-bodied, gold-finned cory that's rarer in tanks than it deserves to be.
Greenstripe Pencilfish
FishNannostomus marilynae
A rare pencilfish that moonlights in cryptic stripes every single night.
Green Terror
FishAndinoacara rivulatus
A bold, beautiful cichlid that will absolutely rearrange your community tank.
Green Texas Cichlid
FishHerichthys carpintis
A pearl-flecked bruiser that rewards bold hobbyists willing to manage its attitude.
Guapore Corydoras
FishCorydoras guapore
A corydoras that defies the bottom-dweller stereotype by schooling mid-water.
Guatemalan Glass Characin
FishRoeboides guatemalensis
A scale-nibbling Central American predator with a hauntingly transparent body.
Guppy
FishPoecilia reticulata
The world's most recognizable livebearer, and probably the easiest fish to breed.
Guppy
FishTomeurus gracilis
A tiny Venezuelan oddity that lays eggs despite fertilizing them internally.
Haitian Cichlid
FishNandopsis haitiensis
A powerhouse cichlid from Hispaniola that takes no prisoners in the aquarium.
Half-striped Penguin Tetra
FishThayeria ifati
The rarest penguin tetra, with a boldly defined tail stripe and colorful fin tips.
Hancock's Amblydoras
FishAmblydoras hancocki
A schooling armored catfish with surprising survival tricks up its sleeve.
Hardback King Pleco
FishGlyptoperichthys joselimaianus
A hefty Amazonian pleco that breathes air and rules the tank bottom.
Harrison's Pencilfish
FishNannostomus harrisoni
A rare, gentle pencilfish that thrives in groups and rewards patient keepers.
Hatchetfish
FishCarnegiella strigata strigata
A tiny, peaceful surface-dweller with a deep-keeled body unlike any other tetra.
Head-and-tail Light Tetra
FishHemigrammus ocellifer
Two glowing spots, nose to tail. A classic community tetra that delivers every time.
Headstander
FishLeporinus brunneus
A sleek South American characin from blackwater rivers, suited to spacious tanks.
Headstander
FishSynaptolaemus latofasciatus
A boldly banded Orinoco headstander with a fascinating taxonomic backstory.
Hemiodus immaculatus
FishHemiodopsis immaculatus
A fast-moving, peaceful schooler from Amazonian blackwater river systems.
Henle's Freshwater Stingray
FishPotamotrygon henlei
A bold, boldly patterned river predator that demands respect and serious space.
Herotilapia multispinosa
FishArchocentrus multispinosus
A tough Central American cichlid with serious parenting instincts and surprising heat tolerance.
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.
Hoplo catfish
FishMegalechis picta
A mud-burrowing South American catfish that breathes air and builds bubble nests.
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.