Species
Browsing 1,325 species. Use the filters below to narrow down.
Redstreaked Blenny
FishCirripectes stigmaticus
A reef-flat blenny with bold red facial markings and loads of personality.
Red-striped Rainbowfish
FishMelanotaenia splendida rubrostriata
A slow-burning rainbowfish that rewards patient keepers with spectacular adult color.
Red-striped Rasbora
FishRasbora pauciperforata
A slender, red-striped schooler that thrives in soft, tannin-rich blackwater setups.
Red-striped Toadfish
FishDichotomyctere erythrotaenia
A compact, red-lined puffer from mangrove creeks that thrives in brackish setups.
Redtail Barb
FishDischerodontus ashmeadi
A rare, bottom-dwelling schooler with vivid red-tipped fins and secretive nocturnal habits.
Redtail Butterflyfish
FishChaetodon collare
A reef native that pairs for life but rarely forgives a rough transition to captivity.
Redtail Catfish
FishPhractocephalus hemioliopterus
A gorgeous river giant that almost no home aquarium can truly accommodate.
Red-tailed Striped Sand Loach
FishAborichthys elongatus
A pebble-stream loach from the Himalayan foothills with a fondness for fast water.
Redtail Notho
FishNothobranchius guentheri
A jewel-bright killifish that lives fast, dies young, and leaves drought-proof eggs.
Red Tail Shark
FishEpalzeorhynchos bicolor
Bold looks, bolder attitude. This Thai native demands respect in any tank.
Redtail Splitfin
FishXenotoca eiseni
A hardy livebearer with a nasty streak and genuinely fascinating reproductive biology.
Red-tail Tinfoil Barb
FishBarbonymus altus
A bold, active schooling barb that quickly outgrows most home aquariums.
Red Terror
FishCichlasoma festae
A massive, fierce Ecuadorian cichlid that will eat anything it can fit in its mouth.
Red Top Williamsi
FishPseudotropheus williamsi
A feisty Malawi cichlid with a vivid orange-red dorsal that demands attention.
Red Zebra
FishMetriaclima estherae
A bold, scrappy cichlid that brings serious color and attitude to the African rift tank.
Reedfish
FishErpetoichthys calabaricus
A living fossil with an eel-like body and a lineage older than the dinosaurs.
Reticulated Flying Fox
FishCrossocheilus reticulatus
A fishnet-patterned grazer that thrives in a lively, well-matched community.
Reticulated Hillstream Loach
FishSewellia lineolata
A bold hillstream loach with bold patterning and surprisingly easy breeding.
Reunion Angelfish
FishApolemichthys guezei
One of the rarest angelfishes in the world, barely known to science or hobby.
Reynoldsi Cory
FishCorydoras reynoldsi
A tiny Colombian cory with a surprisingly long life and some endearing quirks.
Rice Eel or Rice Field Eel
FishMonopterus albus
A land-crossing, air-breathing swamp predator that isn't actually an eel at all.
Ringtailed Pike Cichlid
FishCrenicichla saxatilis
A torpedo-shaped predator from Suriname's creeks, built to ambush and dominate.
Rio Napo cory
FishCorydoras napoensis
A tiny armored catfish from Ecuador that rewards patient keepers with decades of personality.
Ripsaw Catfish
FishMegalodoras uranoscopus
A gentle giant catfish from the Amazon that travels in groups and growls.
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.
Rock Kribensis
FishHaplochromis sauvagei
A Lake Victoria cichlid that hunts snails and insect larvae along rocky shorelines.
Rockmover
FishNovaculichthys taeniourus
A reef demolition crew in fish form, juvenile and adult look like different species.
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
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 Danio
FishDanio roseus
A rosy-hued schooling danio that thrives in lively community tanks.
Rosy Tetra
FishHyphessobrycon bentosi
A rosy, fin-flaring little characin that puts on its best show in a crowd.