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Species

Browsing 819 species. Use the filters below to narrow down.

Irian Rainbowfish

Irian Rainbowfish

Fish

Melanotaenia irianjaya

A rarely seen rainbowfish with an unusual fin shape that sets it apart from its cousins.

Irrawaddy Danio

Irrawaddy Danio

Fish

Devario apogon

A tiny Irrawaddy danionin that hobbyists have barely had a chance to meet yet.

Isorineloricaria villarsi

Isorineloricaria villarsi

Fish

Squaliforma villarsi

A rare Venezuelan pleco with surprising peaceful manners and air-breathing tricks.

Jae Barb

Jae Barb

Fish

Barbus jae

A tiny, jewel-toned African barb best kept in a species-focused setup

Jaguar Guapote

Jaguar Guapote

Fish

Parachromis motaguensis

A bold Central American predator that holds its own against anything in the tank.

Jaintia Hills

Jaintia Hills

Fish

Dario kajal

Tiny scarlet predator from India's hill streams, big on attitude.

Java Barb

Java Barb

Fish

Barbonymus gonionotus

A large, active schooling barb that needs space and robust tank companions.

Javaen Barb

Javaen Barb

Fish

Systomus orphoides

A boisterous, patterned barb that needs bold tankmates and room to roam.

Java Fern

Java Fern

Plant

Microsorum pteropus 'Narrow'

A slender-leaved Java fern variety that attaches itself to wood and stone.

Java Fightingfish

Java Fightingfish

Fish

Betta picta

A mild-mannered mouthbrooding betta that makes the whole genus look bad by comparison.

Java Moss

Java Moss

Plant

Taxiphyllum barbieri

The toughest, most versatile moss in the freshwater hobby.

Javan Ricefish

Javan Ricefish

Fish

Oryzias javanicus

A surface-dwelling ricefish with surprisingly complex spawning behavior, rarely seen for sale.

Jerdon's Baril

Jerdon's Baril

Fish

Barilius canarensis

A bold, fast-moving schooler from Indian hill streams that needs equally spirited tankmates.

Jerdon's carp

Jerdon's carp

Fish

Hypselobarbus jerdoni

A rare, river-schooling giant from the Western Ghats, seldom seen in the hobby.

Jonklaas's Loach

Jonklaas's Loach

Fish

Lepidocephalichthys jonklaasi

A rare Sri Lankan loach hidden beneath leaf litter, seldom seen in the hobby.

Jumbie Teta

Jumbie Teta

Fish

Ancistrus cf cirrhosus

The bristlenose catfish: a compact, algae-grazing workhorse with a face only a hobbyist could love.

Jumbo Cory

Jumbo Cory

Fish

Corydoras multiradiatus

A large, long-snouted cory with a fascinating air-breathing trick up its sleeve.

Jutai

Jutai

Fish

Apistogramma sp. "Kelleri"

A mouthbrooding dwarf cichlid with a remarkably flexible approach to raising its young.

Kabili Bumblebee Goby

Kabili Bumblebee Goby

Fish

Brachygobius kabiliensis

Tiny bumblebee-patterned goby from Borneo's mangroves, surprisingly manageable for new keepers.

Kampango

Kampango

Fish

Bagrus meridionalis

A giant Lake Malawi catfish with one of the most complex social lives in freshwater.

Kane's cory

Kane's cory

Fish

Corydoras kanei

A small, spotted cory from blackwater rivers that breathes air and charms beginners.

Kapuas Betta

Kapuas Betta

Fish

Betta krataios

A tiny mouthbrooding betta from Borneo's blackwater streams, best kept in quiet company.

Karnataka Labeo

Karnataka Labeo

Fish

Labeo calbasu

A large, algae-grazing river fish best appreciated outside the home aquarium.

Killifish

Killifish

Fish

Austrolebias adloffi

A tiny annual killifish that races through its entire life cycle in months.

Kissing Gourami

Kissing Gourami

Fish

Helostoma temminkii

The infamous 'kissing fish' hides a complicated personality behind its pucker.

Kissing Prochilodus

Kissing Prochilodus

Fish

Semaprochilodus insignis

A migratory Amazon grazer that plays a surprising ecological role in the wild.

Kooli Barb

Kooli Barb

Fish

Puntius vittatus

A peaceful little barb from rice fields and streams, best kept in lively groups.

Korean Bitterling

Korean Bitterling

Fish

Acheilognathus signifer

A Korean bitterling with one of the most bizarre spawning strategies in freshwater fish

Korean Doty Barbel

Korean Doty Barbel

Fish

Hemibarbus mylodon

A hefty Korean river barb that rewards simple, spacious setups.

Krabi Mouth Brooding Betta

Krabi Mouth Brooding Betta

Fish

Betta simplex

A rare mouth-brooding betta from Thailand's limestone streams, peaceful by betta standards.

Krauss' Basketmouth

Krauss' Basketmouth

Fish

Caquetaia kraussii

A predatory Colombian cichlid that lurks in swamps and ambushes its prey.

Kribensis

Kribensis

Fish

Pelvicachromis pulcher

A beginner-friendly cichlid that breeds willingly and parents like a pro.

Kribensis

Kribensis

Fish

Pelvicachromis subocellatus

A cave-spawning dwarf cichlid whose females put on a dazzling courtship display.

Kuhli Loach

Kuhli Loach

Fish

Pangio kuhlii

The eel-like bottom dweller that disappears for weeks and reappears at midnight.

Kuhli Loach

Kuhli Loach

Fish

Pangio cuneovirgata

A rare kuhli lookalike from blackwater peat swamps, seldom seen outside expert collections.

Kuhli Loach

Kuhli Loach

Fish

Pangio filinaris

A slender, plain-bodied eel loach from the forested streams of peninsular Malaysia.