Species
Browsing 3,374 species. Use the filters below to narrow down.
Red-tailed Striped Sand Loach
FishAborichthys elongatus
A pebble-stream loach from the Himalayan foothills with a fondness for fast water.
Red Tail Garra
FishGarra sp. "Redtail"
A mysterious, proboscis-nosed stream fish with mood-signaling facial hardware.
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 Tree Coral
CoralPrimnoa pacifica
A cold-water Pacific gorgonian that brings dramatic branching structure to the display tank.
Red Whip Coral
CoralCtenocella pectinata
A delicate comb-shaped gorgonian from Indo-Pacific reef slopes.
Red Wolf Fish
FishErythrinus erythrinus
A bold, air-breathing predator that mimics killifish as a juvenile to lure prey
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.
Reef Chromis
FishChromis retrofasciata
A bite-sized reef chromis that hugs branching corals and minds its own business.
Regal Sea Fan
CoralLeptogorgia hebes
A branching sea fan from the Atlantic coast, built for strong currents.
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.
Reticulate Freshwater Stingray
FishPotamotrygon orbignyi
A manageable freshwater ray for those ready to step up to serious specialist keeping.
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.
Ribbon Coral
CoralAgaricia tenuifolia
A Caribbean frond coral that thrives under low light and gentle flow.
Rice Coral
CoralMontipora verrucosa
A textured, color-shifting Montipora that rewards experienced reefers with dramatic growth forms.
Rice Eel or Rice Field Eel
FishMonopterus albus
A land-crossing, air-breathing swamp predator that isn't actually an eel at all.
Ridge Coral
CoralLeptoseris mycetoseroides
A low-light reef wall dweller that forms impressive plates over a metre wide.
Ridgeless Cactus Coral
CoralMycetophyllia reesi
A smooth, plate-like Caribbean coral with no ridges and an understated charm.
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.
Robust Ivory Tree Coral
CoralOculina robusta
A sturdy, branching Atlantic coral that thrives where others struggle with murky water.
Rocio spinosissima
FishArchocentrus spinosissimus
A spiny Central American cichlid from Guatemala's Lake Izabal basin, rarely seen in the hobby.
Rock Beauty
FishHolacanthus tricolor
A bold Atlantic angel with dramatically different juvenile and adult coloration.
Rock-boring Urchin
InvertEchinometra mathaei
A tireless excavator that literally carves its home into reef rock.
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.