Species
Browsing 3,374 species. Use the filters below to narrow down.
African Snook
FishLates niloticus
One of the world's most destructive invasive species, and genuinely unsuitable for home aquaria.
African Striped Darter
FishNannocharax fasciatus
A tiny West African characin that rewards patient keepers with fascinating bottom-dwelling behavior.
Agassiz's Corydoras
FishCorydoras agassizii
A peaceful armored catfish with a notoriously tricky identity and a 20-year lifespan.
Agassiz's Dwarf Cichlid
FishApistogramma agassizii
A jewel of the Amazon riverbed with big cichlid personality in a small package.
Agile Chromis
FishChromis agilis
A reef-native schooling fish that brings natural movement to larger coral displays.
Aimara
FishHoplerythrinus unitaeniatus
An ancient air-breathing predator that can walk to find new water.
Aiptasia Eating Filefish
FishAcreichthys tomentosus
A seagrass-dwelling filefish that earns its keep hunting small invertebrates.
Akar Betta
FishBetta akarensis
A secretive Bornean mouthbrooder that rewards patient, dedicated keepers.
Alaska Stony Coral
CoralCaryophyllia (Caryophyllia) alaskensis
A solitary cold-water coral bringing deep Pacific character to dedicated reef tanks.
Albater Cory
FishAspidoras albater
A tiny Brazilian catfish with a surprisingly long lifespan and an unusual breathing trick.
Algae Blenny
FishAtrosalarias fuscus fuscus
A jet-black reef algae grazer that earns its keep on the rockwork.
Allauad's Catfish
FishClarias alluaudi
A tough East African clariid that breathes air and thrives where other fish can't.
Allauad's Haplo
FishAstatoreochromis alluaudi
A versatile Victorian cichlid with teeth built to crush snails whole.
Alligator Gar
FishAtractosteus spatula
One of the world's largest freshwater fish, and a lifelong commitment.
Amano Shrimp
InvertCaridina multidentata
The aquarium's hardest-working algae crew, with a habit of stealing everyone's lunch.
Amazon Frogbit
PlantLimnobium laevigatum
Fast-growing South American floater that gives surface-shy fish the shade they crave.
Amazon Puffer
FishColomesus asellus
The only true schooling puffer, and it comes from the Amazon.
Amazon Sailfin Catfish
FishPterygoplichthys pardalis
A gentle giant that moonlights as your tank's algae cleanup crew.
Ambiacus Cory
FishCorydoras ambiacus
A spotty little armored catfish that occasionally surfaces for a gulp of air.
Ambon Gudgeon
FishButis amboinensis
An ambush predator that hunts upside-down under submerged wood
American Filter Shrimp
InvertAtya scabra
A gentle giant filter feeder that earns its keep cleaning the water column.
American flagfish
FishJordanella floridae
Florida's own killifish relative, built for algae duty and bold personalities.
American Zoanthid
CoralEpizoanthus papillosus
A cold-water zoanthid from the North Sea, rarely seen in home aquaria.
Amur Barbel
FishHemibarbus labeo
A large, bottom-rooting cyprinid with a big personality to match its size.
Amur False Gudgeon
FishAbbottina rivularis
A bold, bottom-hugging cyprinid that demands equally assertive tankmates.
Anatolian Toothcarp
FishAphanius anatoliae
A hardy Anatolian toothcarp with a conservation story worth knowing.
Anchor Catfish
FishErethistes jerdoni
A tiny, peaceful catfish that hides by day and explores by night.
Anchor Coral
CoralEuphyllia grandiseptata
Flowing blue-grey tentacles that give reef walls an almost hypnotic motion.
Andaman Fox-face
FishSiganus magnificus
A boldly patterned reef herbivore that pairs for life in the wild.
Andean Catfish
FishAstroblepus ubidiai
A small Ecuadorian mountain catfish with big personality for planted setups.
Andrew Rao's Snakehead
FishChanna andrao
A dwarf snakehead small enough for a community tank, with fascinating parental behavior.
Anduzei's Nannostomus
FishNannostomus anduzei
The tiniest pencilfish, rarely seen but worth hunting down.
Anemone Coral
CoralBernardpora stutchburyi
A low-profile reef coral that keeps its tentacles out even in daylight.
Anemone Coral
CoralGoniopora albiconus
Flat-growing Goniopora with bold white oral cones and rapidly retracting polyps.
Anemone Coral
CoralGoniopora burgosi
A flowing, anemone-like coral that brings dramatic movement to the reef.
Anemone Coral
CoralGoniopora cellulosa
A flowing, polyp-rich coral that tests your reef-keeping patience in rewarding ways.