Species
Browsing 588 species. Use the filters below to narrow down.
Redfin Two-banded Carplet
FishPethia reval
A tiny Sri Lankan barb with vivid red fins and an easy-going nature.
Redline
FishDevario assamensis
A rare, deep-bodied danionid from Assam with vivid lateral striping and restless energy.
Red Lyretail
FishAphyosemion bivittatum
A jewel-toned lyretail from West African rainforest streams, surprisingly compact.
Red Orange Neon
FishPseudomugil sp. "Red Neon"
Tiny, vivid, and electric. A micro-rainbow that rewards patient keepers.
Red Racer Nerite Snail
InvertVittina waigiensis
A bold, patterned algae-eater that never reproduces in freshwater tanks.
Red Ramshorn
InvertPlanorbella duryi
A peaceful, easy-to-keep snail that comes in surprisingly vivid color forms.
Red-spotted Blenny
FishSalarias segmentatus
A reef-dwelling algae grazer with bold red spots and a big personality.
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.
Red-tailed Flag Tetra
FishHyphessobrycon agulha
A rare, peaceful tetra that anchors its entire species group by name.
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.
Reef Chromis
FishChromis retrofasciata
A bite-sized reef chromis that hugs branching corals and minds its own business.
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.
Rohan's Barb
FishDawkinsia rohani
A lively schooling barb from the hill streams of southern India.
Rosy Loach
FishYunnanilus sp. "Rosy"
A rosy little loach that punches above its weight in personality.
Royal Clown Loach
FishLeptobotia pellegrini
China's boldly patterned loach needs a group and robust tankmates to thrive.
Ruby Tetra
FishAxelrodi riesei
A tiny red gem from Colombia that rewards patient, species-focused keepers.
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.
Saddle Barb
FishBarbodes banksi
A rare Bornean barb with a distinctive wedge marking, seldom seen outside specialist circles.
Sailfin Molly
FishPoecilia latipinna
The male's enormous sail-like dorsal fin makes this livebearer instantly recognizable.
Sailfin Molly
FishPoecilia velifera
The towering dorsal fin of this livebearer is a true showpiece when conditions are right.
Salmacis Cory
FishScleromystax salmacis
A tiny armored catfish from Brazilian ponds, with a venomous sting to respect.
Salween Grazer
FishGarra salweenica
A blunt-snouted Salween grazer with a curious three-lobed proboscis.
Sand Crab
InvertEmerita analoga
The tumbling surf-zone specialist that rides waves backward for a living.
Sarasin's Minnow
FishOryzias sarasinorum
A rare Sulawesi ricefish with a truly bizarre egg-carrying trick
Savona Stone Loach
FishSchistura savona
A boldly barred Himalayan loach that holds its own in a community tank.
Scaleless Killifish
FishAphanius asquamatus
A nearly scaleless relic from a single Turkish lake, built for dedicated keepers.
Scarlet Reef Hermit Crab
InvertPaguristes cadenati
A tireless little reef cleaner with bold red legs and a peaceful disposition.
Scissortail Dartfish
FishPtereleotris evides
A graceful reef dartfish that hovers in open water and pairs for life.
Scooter Loach
FishBarbucca diabolica
A belly-crawling 'scooter' loach that rarely leaves the substrate.
Scroll Coral
CoralAgaricia undata
A low-light Caribbean plate coral with elegant scrolling, layered growth.