Species
Browsing 574 species. Use the filters below to narrow down.
Red-backed Paradisefish
FishMacropodus erythropterus
A rarely traded Vietnamese paradisefish with red fins and a complex identity
Red Badis
FishBadis ruber
A secretive cave-spawning micro-predator with fascinating breeding behavior and bold flank markings.
Red-bellied Piranha
FishPygocentrus nattereri
The world's most notorious fish, and surprisingly misunderstood in the wild.
Red Dwarf Rasbora
FishMicrorasbora rubescens
A tiny Lake Inle gem that truly shines when kept in a proper-sized school.
Red Empress
FishProtomelas taeniolatus
A Lake Malawi rock dweller sold under flashy trade names, worth every bit of the hype.
Redeye Tetra
FishMoenkhausia oligolepis
A peaceful, easy-to-breed South American tetra often mistaken for its flashier cousin.
Red Fin Banded Pencilfish
FishNannostomus erythrurus
A slender, vividly finned pencilfish that rewards patient, detail-oriented keepers.
Red Hawkfish
FishNeocirrhites armatus
A vivid red percher that rules its corner of the reef from a favorite rock.
Red Hook Silver Dollar
FishMyloplus rubripinnis
A coin-shaped giant with a bold red fin and a serious appetite for plants.
Red Line Tetra
FishHyphessobrycon amapaensis
A tiny, rarely seen Brazilian tetra with vivid red and cream lateral striping.
Red Orange Neon
FishPseudomugil sp. "Red Neon"
Tiny, vivid, and electric. A micro-rainbow that rewards patient keepers.
Red Peacock
FishAulonocara hansbaenschi
A peacock cichlid from southern Malawi with fiery coloration and manageable temperament.
Red Pencilfish
FishNannostomus mortenthaleri
A tiny, fiery Peruvian pencilfish that punches well above its weight in attitude.
Red Phantom Tetra
FishHyphessobrycon sweglesi
A deep-red schooling tetra that rewards you for keeping bigger groups.
Red-spotted Copeina
FishCopella eigenmanni
A small, peaceful Amazonian schooler with subtle charm and fascinating breeding behavior.
Redspotted Tetra
FishCopeina guttata
A paternal nest-guarder from the Amazon with bold red spots and real personality.
Redspot wrasse
FishPseudocoris yamashiroi
A fast-moving reef wrasse with vivid pink tones and open-water energy.
Redtail Butterflyfish
FishChaetodon collare
A reef native that pairs for life but rarely forgives a rough transition to captivity.
Red-tailed Flag Tetra
FishHyphessobrycon agulha
A rare, peaceful tetra that anchors its entire species group by name.
Red Tail Shark
FishEpalzeorhynchos bicolor
Bold looks, bolder attitude. This Thai native demands respect in any tank.
Reunion Angelfish
FishApolemichthys guezei
One of the rarest angelfishes in the world, barely known to science or hobby.
Ringtailed Pike Cichlid
FishCrenicichla saxatilis
A torpedo-shaped predator from Suriname's creeks, built to ambush and dominate.
Rosy Barb
FishPethia conchonius
Hardy, colorful schooling barb that thrives across a wide range of conditions.
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.
Round-tailed Paradise Fish
FishMacropodus ocellatus
A cold-hardy labyrinth fish that stays active even under ice.
Ruby Sea Dragon
FishPhyllopteryx dewysea
A rose-red sea dragon hiding in the deep, only discovered this century.
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.
Sabah Danio
FishNematabramis everetti
A Bornean river minnow with dramatically long barbels and a bold shoulder patch.
Sabah Dottyback
FishManonichthys alleni
A cave-dwelling Pacific dottyback with a fondness for living inside tubular sponges.
Saddle Barb
FishBarbodes banksi
A rare Bornean barb with a distinctive wedge marking, seldom seen outside specialist circles.
Saddle Butterflyfish
FishChaetodon ephippium
A boldly patterned butterflyfish with a dramatic dark saddle across its back.
Sailfin Tetra
FishCrenuchus spilurus
A solitary little predator with theatrical fin displays and devoted fathering instincts.
Salvin's Cichlid
FishCichlasoma salvini
Colorful, compact, and surprisingly ferocious. A Central American cichlid with real attitude.