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Species

Browsing 2,303 species. Use the filters below to narrow down.

Slender Betta

Slender Betta

Fish

Betta bellica

A slender peat swamp betta that rewards patient, thoughtful keepers

Slender Danio

Slender Danio

Fish

Brachydanio aesculapii

A tiny, patterned danio from an isolated mountain range few fishkeepers know about.

Slender Danio

Slender Danio

Fish

Brachydanio sp. "TW01"

A lively Myanmarese danio with a bold caudal peduncle mark and plenty of personality.

Slender Danio

Slender Danio

Fish

Brachydanio tinwini

A tiny, spot-patterned danio from a single Myanmar stream.

Slender Danios

Slender Danios

Fish

Brachydanio feegradei

A lively schooling danio from Myanmar's isolated western mountains.

Slender Danios

Slender Danios

Fish

Brachydanio kyathit

A small Burmese danio with variable patterning that keeps hobbyists guessing.

Slender Danios

Slender Danios

Fish

Brachydanio sp. "Hikari"

A peaceful schooler from Myanmar with a taxonomic twist hiding in its stripes.

Slender Hemiodus

Slender Hemiodus

Fish

Hemiodus gracilis

A fast-moving Amazon schooler that thrives in large, active biotope communities.

Slender Lungfish

Slender Lungfish

Fish

Protopterus dolloi

A living fossil that breathes air and can crawl across dry land.

Slender Piranha

Slender Piranha

Fish

Serrasalmus elongatus

A sleek, solitary predator that's one of the easiest piranhas to identify correctly.

Slender Rainbowfish

Slender Rainbowfish

Fish

Melanotaenia gracilis

A rare, slender Australian rainbow from one of the continent's most remote river systems.

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.

Slippery Dick

Slippery Dick

Fish

Halichoeres bivittatus

A bold, fast-moving wrasse that earns its unforgettable name.

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.

Snowflake Blenny

Snowflake Blenny

Fish

Salarias ramosus

A personable reef grazer with bold patterning and surprising air-breathing ability.

Snowflake Eel

Snowflake Eel

Fish

Echidna nebulosa

A crustacean-crushing moray that coexists peacefully with fish tankmates.

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.

Social Fairy Wrasse

Social Fairy Wrasse

Fish

Cirrhilabrus rubriventralis

A jewel-toned Red Sea wrasse that dances through the water column in groups.

Sohal Tang

Sohal Tang

Fish

Acanthurus sohal

A bold Red Sea beauty that rules its territory with zero tolerance for rivals.

Soldier Lionfish

Soldier Lionfish

Fish

Pterois miles

A bold, venomous reef predator wearing its warning in every fin.

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.