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Species

Browsing 1,299 species. Use the filters below to narrow down.

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.

Knobbed Brain Coral

Knobbed Brain Coral

Coral

Pseudodiploria clivosa

A hardy Caribbean brain coral with distinctively ridged, knobby colonies.

Knobbed Zoanthidean

Knobbed Zoanthidean

Coral

Palythoa mammillosa

A hardy Atlantic zoanthid with a distinctively bumpy, textured colony surface.

Knobby Cactus Coral

Knobby Cactus Coral

Coral

Mycetophyllia aliciae

A hardy Caribbean plate coral with bold texture and an easygoing nature.

Knob Coral

Knob Coral

Coral

Favia gravida

A compact Atlantic coral with tidy, rounded corallites and a warm pale orange hue.

Knob Coral

Knob Coral

Coral

Mussismilia leptophylla

A hardy Brazilian reef coral with a distinctively knobbed, sculptural form.

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.

Kuhli Loach

Kuhli Loach

Fish

Pangio malayana

A slender kuhli loach relative that travels incognito in mixed shipments

Kuhli Loach

Kuhli Loach

Fish

Pangio piperata

A speckled, secretive kuhli loach that turns up as a mystery in mixed shipments.

Kuhli Loach

Kuhli Loach

Fish

Pangio sp. "PAN03"

A mystery kuhli loach from Borneo that science hasn't named yet.

Kuiter's Wrasse

Kuiter's Wrasse

Fish

Macropharyngodon kuiteri

A boldly patterned reef wrasse that thrives in small, active groups.

L128

L128

Fish

Hemiancistrus sp

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

L234

L234

Fish

Megalancistrus sp. "L234"

A massive, aggressive pleco from eastern Brazil that demands respect and space.

L239

L239

Fish

Baryancistrus beggini

A tiny, dark-bodied pleco with an iridescent blue sheen from Guyana Shield rapids.

L260

L260

Fish

Hypancistrus sp. "L260"

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

Lace Lettuce Coral

Lace Lettuce Coral

Coral

Leptoseris cailleti

A deep-water Atlantic coral bringing unusual twisted fronds to low-light reef tanks.

Lacrimostigmata Cory

Lacrimostigmata Cory

Fish

Corydoras lacrimostigmata

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

Lake Inle Red-tailed Loach

Lake Inle Red-tailed Loach

Fish

Petruichthys brevis

A tiny loach from Myanmar's famous Inle Lake, best kept in groups.

Lamarck's sheet coral

Lamarck's sheet coral

Coral

Agaricia lamarcki

A low-light Caribbean plate coral with distinctive white star-shaped mouths.

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.

Largebrain Root Coral

Largebrain Root Coral

Coral

Lobophyllia hemprichii

A fleshy, slow-growing brain coral that suits reef beginners with its forgiving nature.

Large Cactus Coral

Large Cactus Coral

Coral

Mycetophyllia lamarckiana

A Caribbean reef plate coral with a wonderfully textured, cactus-like surface.

Large Flower Coral

Large Flower Coral

Coral

Mussa angulosa

A bold Caribbean coral with fleshy, dramatic polyps suited to most reef setups.

Largescaled Rasbora

Largescaled Rasbora

Fish

Rasbora paucisqualis

A tiny forest stream rasbora from the Mekong, rarely seen outside scientific collections.

Lattice Dwarf Cichlid

Lattice Dwarf Cichlid

Fish

Nannacara taenia

A quietly charming dwarf cichlid hiding some fascinating breeding behavior beneath plain looks.