Species
Browsing 1,518 species. Use the filters below to narrow down.
Redeye Puffer
FishCarinotetraodon lorteti
A tiny puffer with dramatic color-changing ability and surprisingly long lifespan.
Redeye Tetra
FishMoenkhausia oligolepis
A peaceful, easy-to-breed South American tetra often mistaken for its flashier cousin.
Red-finned Loach
FishYasuhikotakia lecontei
A sociable loach with complex group dynamics and real personality to match.
Redfin Pickerel
FishEsox americanus americanus
A pint-sized ambush predator that turns patience into a hunting superpower.
Redfin Two-banded Carplet
FishPethia reval
A tiny Sri Lankan barb with vivid red fins and an easy-going nature.
Redflank Bloodfin
FishAphyocharax rathbuni
A fin-nipping schooler that rewards careful community planning with lively, colorful energy.
Red Garra
FishGarra rufa
The original 'doctor fish', famous for nibbling skin long before spa treatments existed.
Red Hook Silver Dollar
FishMyloplus rubripinnis
A coin-shaped giant with a bold red fin and a serious appetite for plants.
Redline
FishDevario assamensis
A rare, deep-bodied danionid from Assam with vivid lateral striping and restless energy.
Red Line Tetra
FishHyphessobrycon amapaensis
A tiny, rarely seen Brazilian tetra with vivid red and cream lateral striping.
Red Lips
FishSatanoperca rhynchitis
A gregarious French Guiana cichlid with distinctive red lips and surprising gentleness outside of spawning.
Red Lyretail
FishAphyosemion bivittatum
A jewel-toned lyretail from West African rainforest streams, surprisingly compact.
Red Lyretail Swordtail
FishXiphophorus helleri
A selectively bred swordtail with a ruffled dorsal fin and deep crimson color throughout.
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 Rainbowfish
FishGlossolepis incisus
A deep-bodied red rainbow that rewards group keeping with dazzling male displays.
Red Ramshorn
InvertPlanorbella duryi
A peaceful, easy-to-keep snail that comes in surprisingly vivid color forms.
Red Root Floaters
PlantPhyllanthus fluitans
A fast-spreading floater with vivid red roots that shrimp absolutely love.
Red Side Barb
FishPuntius bimaculatus
A peaceful, active schooler from South Asian streams with a vivid red flanks in males.
Redspot Cichlid
FishAmphilophus calobrensis
A rare Panamanian cichlid with a ferocious personality and fascinating parental behavior.
Red-spotted Copeina
FishCopella eigenmanni
A small, peaceful Amazonian schooler with subtle charm and fascinating breeding behavior.
Red-spotted Goby
FishRhinogobius rubromaculatus
A tiny, fast-moving stream goby from Taiwan and China's upland rivers.
Red-spotted Killi
FishAphyosemion cognatum
A compact, colorful killi that's surprisingly gentle on beginner patience.
Red Spotted Nerite Snail
InvertClithon diadema
A boldly patterned algae grazer that keeps glass and hardscape spotless.
Redspotted Panchax
FishEpiplatys lamottei
A West African surface killifish dressed in red spots and dark bars.
Redspotted Tetra
FishCopeina guttata
A paternal nest-guarder from the Amazon with bold red spots and real personality.
Redstriped Eartheater
FishGeophagus surinamensis
A mouthbrooding digger that sifts sand and fiercely guards its young.
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 Swamp Crayfish
InvertProcambarus clarkii
Hardy, bold, and endlessly entertaining. But a menace to planted tanks.
Redtail Catfish
FishPhractocephalus hemioliopterus
A gorgeous river giant that almost no home aquarium can truly accommodate.
Red-tailed Black Shark
FishCyclocheilos enoplos
A giant Southeast Asian river fish that belongs in public aquaria, not home tanks.
Red-tailed Flag Tetra
FishHyphessobrycon agulha
A rare, peaceful tetra that anchors its entire species group by name.
Red-tailed Freshwater Barracuda, Spotted Cachorro
FishAcestrorhynchus falcatus
A pike-like ambush predator that minds its manners with fish it can't swallow.