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Species

Browsing 934 species. Use the filters below to narrow down.

Java Combtail

Java Combtail

Fish

Belontia hasselti

A large, territorial labyrinth fish that rewards patient, experienced keepers.

Jello Band Catfish

Jello Band Catfish

Fish

Aguarunichthys torosus

A powerfully built Peruvian catfish that treats smaller tankmates as a meal.

Jellybean Tetra

Jellybean Tetra

Fish

Lepidarchus adonis

A tiny, transparent West African gem that rewards patient, detail-oriented keepers.

Jelly Bean Tetra

Jelly Bean Tetra

Fish

Ladigesia roloffi

A tiny West African gem that thrives in groups and rewards patient keepers.

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.

Jewel Cichlid

Jewel Cichlid

Fish

Hemichromis bimaculatus

Gorgeous West African cichlid that becomes a ferocious defender once paired up.

Julii Cory

Julii Cory

Fish

Corydoras julii

A spotted little catfish that blinks, breathes air, and belongs in every peaceful community.

Julii Cory

Julii Cory

Fish

Corydoras trilineatus

Commonly sold as julii cory, this peaceful armored catfish is a beginner-friendly gem.

Jumbo Cory

Jumbo Cory

Fish

Corydoras multiradiatus

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

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.

Keyhole Cichlid

Keyhole Cichlid

Fish

Cleithracara maronii

A gentle, shy cichlid whose camouflage trick is straight out of a nature documentary.

Knife Livebearer

Knife Livebearer

Fish

Alfaro cultratus

A tough little livebearer with a blade-like keel and a feisty personality.

Knobnose Whiptail Catfish

Knobnose Whiptail Catfish

Fish

Hemiodontichthys acipenserinus

The only catfish where dad carries the eggs on his lips.

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

Kotsovato

Kotsovato

Fish

Paretroplus kieneri

A peaceful Malagasy cichlid rarely seen outside specialist collections.

Kribensis

Kribensis

Fish

Pelvicachromis pulcher

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

Krieg's Mini Tetra

Krieg's Mini Tetra

Fish

Odontostilbe kriegi

A small, peaceful South American schooler that thrives in the mid-water column.

Kubuna Hardyhead

Kubuna Hardyhead

Fish

Craterocephalus randi

A slender, active schooler from the clear streams of New Guinea.

Kuhli Loach

Kuhli Loach

Fish

Pangio kuhlii

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

Kumakuma

Kumakuma

Fish

Brachyplatystoma filamentosum

One of the largest freshwater fish on Earth, and reportedly a danger to humans.

Kyburz Tetra

Kyburz Tetra

Fish

Pseudochalceus kyburzi

A peaceful Colombian schooler with a nippy streak worth planning around.

L12

L12

Fish

Ancistomus feldbergae

A rock-dwelling Xingu pleco that grazes algae by night and hides by day.

L128

L128

Fish

Hemiancistrus sp

A spot-patterned Orinoco pleco with a taxonomic identity that's still up for debate.

L200

L200

Fish

Baryancistrus demantoides

A territorial Venezuelan pleco with vivid spots and a noticeably tall dorsal fin.

L260

L260

Fish

Hypancistrus sp. "L260"

A fine-patterned Tapajós pleco that breeds readily and stays compact.

Lacrimostigmata Cory

Lacrimostigmata Cory

Fish

Corydoras lacrimostigmata

A tiny armored catfish that may mimic its wild neighbors to blend in.

Ladder Loach

Ladder Loach

Fish

Botia rostrata

A boldly barred loach with a complex social life and real personality.

Lake Kurumoi Rainbowfish

Lake Kurumoi Rainbowfish

Fish

Melanotaenia parva

A rare mountain lake gem that puts on a show at feeding time.

Lake Kutubu Rainbowfish

Lake Kutubu Rainbowfish

Fish

Melanotaenia lacustris

A slow-developing rainbowfish whose true colors take patience to unlock.

Lake Tebera Rainbowfish

Lake Tebera Rainbowfish

Fish

Melanotaenia herbertaxelrodi

A highland Papua New Guinea gem that rewards patient keepers with vivid color.

Lake Wanam Rainbowfish

Lake Wanam Rainbowfish

Fish

Glossolepis wanamensis

A critically endangered rainbowfish from a single remote Papua New Guinea lake.

Lambchop Rasbora

Lambchop Rasbora

Fish

Trigonostigma espei

A copper-bodied schooler whose distinctive lambchop marking sets it apart from look-alikes.

Lambert's cory

Lambert's cory

Fish

Corydoras lamberti

A rare and enigmatic armored catfish from the Peruvian Amazon, best kept in groups.