🌱Nano tank friendly
Species that stay small enough to thrive in tanks under 20 gallons. Perfect for desktop setups, planted nanos, and pico reefs.
323 species
Splash Tetra
FishCopella carsevennensis
A tiny surface-dweller with one of the most acrobatic spawning rituals in freshwater fishkeeping.
Splendid Killifish
FishAphanius splendens
A rare Turkish killifish relative worth keeping for conservation as much as curiosity.
Spotted Cory
FishCorydoras brevirostris
A tiny armored catfish with a surprisingly long lifespan and a talent for breathing air.
Spotted Hatchetfish
FishGasteropelecus levis
A surface-hugging jumper with a deep keel and surprisingly peaceful nature.
Spotted Hillstream Loach
FishSewellia speciosa
A spotted hillstream loach that's feisty, fascinating, and surprisingly easy to breed.
Sterba's Cory
FishCorydoras sterbai
A long-lived, peaceful catfish that does everything better in a group.
Stick Catfish
FishAcestridium dichromum
A twig-mimicking catfish from blackwater Orinoco rivers, rarely seen in the trade.
Strawberry
FishApistogramma eremnopyge
A tiny Peruvian cichlid with a dark tail blotch and surprisingly complex social needs.
Strawberry Rasbora
FishBoraras naevus
A thumbnail-sized Thai rasbora with bold body blotches and big personality in groups.
Striped barb
FishPuntius lineatus
A peaceful Bornean barb that shows its best colors in a proper school.
Sucker catfish
FishOtocinclus flexilis
A tiny algae grazer from Brazil with a surprising trick up its sleeve.
Sulawesi Ricefish
FishOryzias eversi
A tiny Sulawesi ricefish with a fascinating pelvic-brooding trick.
Sulawesi Ricefish
FishOryzias wolasi
A tiny Sulawesi ricefish with glowing color and surprisingly easy breeding habits.
Tailspot corydoras
FishCorydoras caudimaculatus
A tiny armored catfish with a bold tail spot and surprisingly long lifespan.
Tamang Borneo sucker
FishHypergastromyzon humilis
A tiny Bornean hillstream loach that crawls rocks instead of swimming
Tetra
FishHyphessobrycon acaciae
A tiny Orinoco tetra with a bold dark lateral stripe and beginner-friendly nature.
Thai Ricefish
FishOryzias songkhramensis
A tiny Thai ricefish with a fascinating breeding style and peaceful nature.
Threadfin Rainbowfish
FishIriatherina werneri
Delicate featherfin rainbowfish with spectacular filamentous fins best shown in a species setup.
Three-lined African Tetra
FishNeolebias trilineatus
A tiny, shy Congo tetra that transforms into a jewel in the right tank.
Three-spotted Dwarf Minnow
FishBoraras micros
One of the tiniest cyprinids around, and genuinely underrated for the right setup.
Three Stripe Pencilfish
FishNannostomus trifasciatus
A pencilfish with real attitude. Best kept in big groups with broken sightlines.
Tiger loach
FishAcanthocobitis urophthalmus
A tiny, peaceful bottom-dweller from Sri Lanka's fast-flowing lowland streams.
Tocantins Tetra
FishHyphessobrycon stegemanni
A tiny Tocantins tetra often mistaken for its look-alike neighbor.
Turbo Snail
InvertTurbo fluctuosa
A tireless algae grazer that needs a helping hand if it tips over.
Two-striped Pencilfish
FishNannostomus digrammus
A rare, peaceful pencilfish that doubles as the perfect dither fish for dwarf cichlid tanks.
Ulrey's Tetra
FishHemigrammus ulreyi
A peaceful schooling tetra that's rarer in tanks than its charm deserves.
Vateria Flower Rasbora
FishRasboroides vaterifloris
A rare Sri Lankan gem that shimmers in red, orange, or yellow depending on where it hatched.
Virginia's Cory
FishCorydoras virginiae
A long-lived armored catfish from Peru with a surprisingly personal quirk: it blinks.
Volcano Killifish
FishAphyosemion volcanum
A rare Cameroonian killifish from volcanic rainforest streams, seldom seen in the hobby.
Wasp Catfish
FishAkysis vespa
A tiny banded catfish from Myanmar's fast streams, built like a wasp.
White Cloud Mountain Minnow
FishTanichthys albonubes
A cold-tolerant schooling fish that practically takes care of itself.
White Star Tetra
FishAxelrodia stigmatias
A tiny Amazonian shoaler that rewards patient keepers with lively social behavior.
White stripe cory
FishCorydoras albolineatus
A white-striped Bolivian cory that occasionally gulps air at the surface.
X-Ray Tetra
FishPristella maxillaris
The see-through tetra whose bold dorsal fin pattern makes a school unforgettable.
Yasha Goby
FishStonogobiops yasha
A tiny reef goby that shares its burrow with a nearly-blind shrimp partner.