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Species

Browsing 1,903 species. Use the filters below to narrow down.

Slender Tail Hap

Slender Tail Hap

Fish

Buccochromis lepturus

A rarely seen Lake Malawi predator that hunts juvenile cichlids on sandy flats.

Slimy Loach

Slimy Loach

Fish

Pangio myersi

A social, eel-like loach that piles into hiding spots with its companions.

Slobbering Catfish

Slobbering Catfish

Fish

Brachyplatystoma platynemum

A rarely-seen Amazonian giant named for its unusually thick, drooping barbels.

Smallfin Fighter

Smallfin Fighter

Fish

Betta miniopinna

A tiny, dark peat-swamp Betta with vivid red pelvic fins and a gentle nature.

Smallscale Archerfish

Smallscale Archerfish

Fish

Toxotes microlepis

The freshwater archer that hunts insects by spitting water with sniper precision.

Smokey Glass Catfish

Smokey Glass Catfish

Fish

Kryptopterus cryptopterus

A ghostly schooling catfish that disappears against the current

Smudge spot cory

Smudge spot cory

Fish

Corydoras similis

A small armored catfish that breathes air and thrives in a lively group.

Snail-crusher Hap

Snail-crusher Hap

Fish

Trematocranus placodon

A snail-crushing Lake Malawi hap with a specialist trick most cichlids lack.

Snakehead Betta

Snakehead Betta

Fish

Betta channoides

A tiny, peaceful mouthbrooder from Borneo's blackwater forest streams.

Snakeskin Barb

Snakeskin Barb

Fish

Desmopuntius rhomboocellatus

A peaceful Bornean barb that really comes alive in a proper-sized school.

Snake-skin Gourami

Snake-skin Gourami

Fish

Trichopodus pectoralis

A big, peaceful gourami with wild origins in the flooded forests of Southeast Asia.

Snakeskin Gourami

Snakeskin Gourami

Fish

Trichogaster pectoralis

A gentle giant gourami that thrives where few fish could survive.

Snowball Pleco

Snowball Pleco

Fish

Baryancistrus sp. "L142"

A boldly spotted Amazonian pleco that gets feisty as it grows up.

Snowball Pleco

Snowball Pleco

Fish

Hypancistrus inspector

Bold spotted pleco from Venezuelan rapids, compact enough for a mid-size tank.

Snyder's Barb

Snyder's Barb

Fish

Puntius snyderi

Taiwan's little-known barb that rivals the golden barb in looks but rarely in fame.

Somphongs's Rasbora

Somphongs's Rasbora

Fish

Trigonostigma somphongsi

One of the rarest aquarium fish alive, rescued from the edge of extinction.

Sorong Rainbowfish

Sorong Rainbowfish

Fish

Melanotaenia fredericki

A compact Indonesian rainbowfish with vivid color that rewards attentive keepers.

South American Lungfish

South American Lungfish

Fish

Lepidosiren paradoxa

A living fossil that breathes air, crawls on fins, and outlives most pets.

Southern Purple Spotted Gudgeon

Southern Purple Spotted Gudgeon

Fish

Mogurnda adspersa

A rare Australian native where the male does all the parenting. And most of the bossing around.

Southern Sailfin Catfish

Southern Sailfin Catfish

Fish

Pterygoplichthys anisitsi

A prehistoric-looking giant that moonlights as your tank's cleanup crew.

Southern Saratoga

Southern Saratoga

Fish

Scleropages leichardti

Australia's ancient surface predator, built for ambush and best kept alone.

Spangled Cichlid

Spangled Cichlid

Fish

Acaronia vultuosa

A compact Orinoco predator that punches above its weight in planted setups.

Spanish Toothcarp

Spanish Toothcarp

Fish

Aphanius iberus

A rare Mediterranean killifish worth keeping for conservation as much as curiosity.

Sparkling Eartheater

Sparkling Eartheater

Fish

Satanoperca acuticeps

A sociable eartheater with three bold flank blotches, rarely seen in the trade.

Sparkling Gourami

Sparkling Gourami

Fish

Trichopsis pumila

Tiny gourami that settles disputes by croaking like a miniature frog

spearer mantis shrimp

spearer mantis shrimp

Invert

Lysiosquillina maculata

A bold, burrow-dwelling predator with a lightning-fast spearing strike.

Speckled Piranha

Speckled Piranha

Fish

Serrasalmus spilopleura

A solitary, razor-toothed predator best kept one to a tank.

Spiketail Paradise Fish

Spiketail Paradise Fish

Fish

Pseudosphromenus cupanus

A shy, small labyrinth fish with secretive bubble-nesting habits worth watching.

Spilotus Cory

Spilotus Cory

Fish

Aspidoras spilotus

A tiny Brazilian cory relative that can gulp air when needed.

Spiny Catfish

Spiny Catfish

Fish

Clarotes laticeps

A wide-headed African predator that will outgrow most home aquariums.

Spiny Eel

Spiny Eel

Fish

Caecomastacembelus albomaculatus

A rarely seen Tanganyikan spiny eel for the serious rift lake setup.

Spiny Stream Pleco

Spiny Stream Pleco

Fish

Hypostomus latifrons

A hardy Paraguayan armored catfish with a surprising ability to breathe air.

Spixi Snail

Spixi Snail

Invert

Asolene spixi

A compact, zebra-striped apple snail that actually eats pest snails.

Splash Tetra

Splash Tetra

Fish

Copella arnoldi

The fish that leaps out of water to lay eggs on leaves above the surface.

Splash Tetra

Splash Tetra

Fish

Copella carsevennensis

A tiny surface-dweller with one of the most acrobatic spawning rituals in freshwater fishkeeping.

Splendid Killifish

Splendid Killifish

Fish

Aphanius splendens

A rare Turkish killifish relative worth keeping for conservation as much as curiosity.