Species
Browsing 3,374 species. Use the filters below to narrow down.
Indian Sea Star
InvertFromia indica
A vivid reef sea star that's more forgiving than most of its relatives.
Indigo Barb
FishPethia setnai
A peaceful, school-loving barb from Goa's clear streams, perfect for community tanks.
Indigo Dartfish
FishPtereleotris heteroptera
A devoted reef pair that hovers gracefully above their shared burrow.
Indigo Hamlet
FishHypoplectrus indigo
A reef-dwelling hamlet with bold indigo patterning and a surprisingly easygoing nature.
Indochinese Needlefish
FishXenentodon canciloides
A freshwater needlefish that's calmer than its needle-filled grin suggests.
Indonesian Snakehead
FishChanna micropeltes
A genuinely massive predator that outgrows most home aquariums before you know it.
Indo-pacific Tarpon
FishMegalops cyprinoides
A prehistoric, air-breathing giant that bridges freshwater rivers and open ocean.
Intermediate Valley Coral
CoralOulophyllia bennettae
A solid, angular reef-builder with a quietly distinctive greenish-grey palette.
Intermediate Valley Coral
CoralOulophyllia crispa
A bold, brain-like coral with broad valleys and an easygoing nature.
Irian Rainbowfish
FishMelanotaenia irianjaya
A rarely seen rainbowfish with an unusual fin shape that sets it apart from its cousins.
Iridescent Cardinalfish
FishPristiapogon kallopterus
A subtly shimmering cardinalfish that thrives where many marines struggle.
Iridescent Killifish
FishAphanius mento
A feisty Middle Eastern killifish best kept as a conservation project.
Irrawaddy Danio
FishDevario apogon
A tiny Irrawaddy danionin that hobbyists have barely had a chance to meet yet.
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.
Jae Barb
FishBarbus jae
A tiny, jewel-toned African barb best kept in a species-focused setup
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.
Jaguar Loach
FishYasuhikotakia splendida
A rare Mekong loach with bold spots, yellow fins, and fascinating social rituals.
Jaintia Hills
FishDario kajal
Tiny scarlet predator from India's hill streams, big on attitude.
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.
Japanese Angelfish
FishCentropyge interruptus
A rare Japanese deepwater dwarf angel that pairs for life on rocky reefs.
Japanese medaka
FishOryzias latipes
The first vertebrate to mate in space, now a rewarding nano fish for patient keepers.
Japanese Sea Nettle
InvertChrysaora pacifica
A striking open-water predator that demands a very specialized setup.
Java Barb
FishBarbonymus gonionotus
A large, active schooling barb that needs space and robust tank companions.
Java Combtail
FishBelontia hasselti
A large, territorial labyrinth fish that rewards patient, experienced keepers.
Javaen Barb
FishSystomus orphoides
A boisterous, patterned barb that needs bold tankmates and room to roam.
Java Fern
PlantMicrosorum pteropus
A tough, adaptable fern that thrives even when most plants would give up.
Java Fern
PlantMicrosorum pteropus 'Narrow'
A slender-leaved Java fern variety that attaches itself to wood and stone.
Java Fightingfish
FishBetta picta
A mild-mannered mouthbrooding betta that makes the whole genus look bad by comparison.
Java Moss
PlantTaxiphyllum barbieri
The toughest, most versatile moss in the freshwater hobby.
Javan Ricefish
FishOryzias javanicus
A surface-dwelling ricefish with surprisingly complex spawning behavior, rarely seen for sale.