Species
Browsing 1,903 species. Use the filters below to narrow down.
River Goby
FishAwaous banana
A sand-sifting river giant that grazes algae like an aquatic lawnmower.
Robusta Cory
FishCorydoras robustus
One of the largest corys around, rarely seen and worth the hunt.
Rocio spinosissima
FishArchocentrus spinosissimus
A spiny Central American cichlid from Guatemala's Lake Izabal basin, rarely seen in the hobby.
Rocket Panchax
FishPseudepiplatys annulatus
A tiny West African killifish with bold bands and surprisingly shy habits.
Rock Kribensis
FishHaplochromis sauvagei
A Lake Victoria cichlid that hunts snails and insect larvae along rocky shorelines.
Rohan's Barb
FishDawkinsia rohani
A lively schooling barb from the hill streams of southern India.
Roloff's Krib
FishPelvicachromis roloffi
A cave-spawning West African dwarf cichlid with strong pair bonds and subtle charm.
Rose Common Pleco
FishHypostomus roseopunctatus
A hefty South American pleco with an unusual ability to breathe air.
Roseline Shark
FishSahyadria denisonii
The endangered Indian torpedo barb with a vivid red-and-black racing stripe
Rosette River Stingray
FishPotamotrygon schroederi
A rare, patterned freshwater ray that demands respect and serious commitment.
Rostratus
FishFossorochromis rostratus
The sand-diving Lake Malawi cichlid that buries itself when spooked.
Rosy Barb
FishPethia conchonius
Hardy, colorful schooling barb that thrives across a wide range of conditions.
Rosy Basketmouth
FishCaquetaia spectabilis
A bold Amazonian cichlid that pairs for life and defends its brood fiercely.
Rosy Danio
FishDanio roseus
A rosy-hued schooling danio that thrives in lively community tanks.
Rosy Loach
FishYunnanilus sp. "Rosy"
A rosy little loach that punches above its weight in personality.
Rosy Tetra
FishHyphessobrycon bentosi
A rosy, fin-flaring little characin that puts on its best show in a crowd.
Rosy Tetra
FishHyphessobrycon rosaceus
A softly blushing schooling tetra that rewards keepers who think in groups.
Rotpunct Apisto
FishApistogramma alacrina
A pint-sized Colombian dwarf cichlid with a uniquely spotted pectoral fin base.
Round-tailed Paradise Fish
FishMacropodus ocellatus
A cold-hardy labyrinth fish that stays active even under ice.
Royal Clown Loach
FishLeptobotia pellegrini
China's boldly patterned loach needs a group and robust tankmates to thrive.
Royal Farlowella Whiptail Catfish (Tank-Bred)
FishSturisoma panamense
An elegant whiptail catfish that grazes algae and breathes air when needed.
Royal Featherback
FishChitala blanci
A massive Mekong predator that will outgrow almost any home aquarium.
Royal Pleco
FishPanaque nigrolineatus
A wood-rasping giant with bold racing stripes and a reclusive personality.
Royal Whiptail
FishSturisoma festivum
A sleek, whiskered algae grazer from the Maracaibo basin with a surprising trick up its sleeve.
Ruby Tetra
FishAxelrodi riesei
A tiny red gem from Colombia that rewards patient, species-focused keepers.
Rummy Nose Tetra
FishHemigrammus bleheri
A tight-schooling tetra whose vivid red nose blazes brightest in a large group.
Rummy Nose Tetra
FishHemigrammus rhodostomus
The original rummy-nose, built for tight shoals and soft Amazon water.
Ryukin Goldfish
FishCarassius auratus var. ryukin
The hump-backed beauty of fancy goldfish keeping, built for cool, calm ponds and tanks.
Sabah Danio
FishNematabramis everetti
A Bornean river minnow with dramatically long barbels and a bold shoulder patch.
Sabanus Bumblebee Goby
FishBrachygobius sabanus
A tiny brackish goby with bold banding and a big territorial attitude.
Saddleback Acara
FishAequidens tetramerus
A wide-ranging South American cichlid with vivid locality color forms worth hunting down.
Saddle Barb
FishBarbodes banksi
A rare Bornean barb with a distinctive wedge marking, seldom seen outside specialist circles.
Saddle Corydoras
FishCorydoras ephippifer
A rarely-seen Amazonian cory with clear fins and a surprisingly long lifespan.
Saddled Bichir
FishPolypterus endlicheri
A prehistoric African predator that breathes air and grows to impressive lengths.
Saddled Bichir
FishPolypterus endlicheri endlicheri
A living fossil that can breathe air and survive out of water.
Sailfin Molly
FishPoecilia latipinna
The male's enormous sail-like dorsal fin makes this livebearer instantly recognizable.