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.
12 species · freshwater · inverts
Sub-regions
American Filter Shrimp
InvertAtya scabra
A gentle giant filter feeder that earns its keep cleaning the water column.
Bladder Snail
InvertPhysella acuta
The unstoppable little snail that thrives where others fail.
Blue Crayfish
InvertProcambarus alleni
Florida's boldest crustacean, in an almost unreal shade of blue.
Cajun Dwarf Crayfish
InvertCambarellus shufeldtii
A pint-sized Louisiana crayfish that won't terrorize your plants or tankmates.
Ghost Shrimp
InvertPalaemonetes paludosus
Nearly transparent and endlessly busy, ghost shrimp are a perfect starter invertebrate.
Giant Ramshorn Snail
InvertMarisa cornuarietis
The boldly striped ramshorn that doubles as a natural plant trimmer.
Mexican Dwarf Crayfish
InvertCambarellus patzcuarensis
Tiny, peaceful, and full of personality. The dwarf crayfish that plays well with others.
Mystery Snail
InvertPomacea bridgesii
A peaceful, algae-grazing snail that comes in a rainbow of shell colors.
Red Ramshorn
InvertPlanorbella duryi
A peaceful, easy-to-keep snail that comes in surprisingly vivid color forms.
Red Swamp Crayfish
InvertProcambarus clarkii
Hardy, bold, and endlessly entertaining. But a menace to planted tanks.
Spixi Snail
InvertAsolene spixi
A compact, zebra-striped apple snail that actually eats pest snails.
Zebra Nerite Snail
InvertNeritina zebra
A tireless algae grazer with bold stripes that earns its keep in any freshwater tank.