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.
10 species · brackish · fish
Sub-regions
Candy Cane Goby
FishAwaous flavus
A sand-sifting South American goby with bold red fin markings and real personality.
Guppy
FishPoecilia reticulata
The world's most recognizable livebearer, and probably the easiest fish to breed.
Molly
FishPoecilia sphenops
A livebearer classic that can thrive from freshwater all the way to full marine conditions.
Platy
FishXiphophorus maculatus
The beginner-proof livebearer that comes in more color forms than you can count.
River Goby
FishAwaous banana
A sand-sifting river giant that grazes algae like an aquatic lawnmower.
Sailfin Molly
FishPoecilia latipinna
The male's enormous sail-like dorsal fin makes this livebearer instantly recognizable.
Sailfin Molly
FishPoecilia velifera
The towering dorsal fin of this livebearer is a true showpiece when conditions are right.
Swordtail
FishXiphophorus hellerii
The elongated tail sword makes males one of the most recognizable livebearers in the hobby.
Tete Sea Catfish
FishAriopsis seemanni
A venomous, migratory catfish that's far more demanding than its juvenile looks suggest.
Variable Platyfish
FishXiphophorus variatus
Dozens of color forms, endless fry, and tolerant enough for any community tank.