Species
Browsing 785 species. Use the filters below to narrow down.
Starry Triggerfish
FishAbalistes stellaris
A surprisingly beginner-friendly triggerfish with bold spots and serious size.
Stellar Coral
CoralPsammocora stellata
A tough, wave-battered coral that shrugs off turbulence most others can't handle.
Stellate Dragonet
FishSynchiropus stellatus
A pint-sized predator from Indian Ocean reefs, built for life among the rubble.
Stellate Puffer
FishArothron stellatus
The largest puffer in the world, built like a torpedo with a beak to match.
Stephanocyathus laevifundus
CoralStephanocyathus (Stephanocyathus) laevifundus
A solitary deep-water cup coral from the Atlantic with an air of mystery.
Stocky Anthias
FishPseudanthias hypselosoma
A robust, gregarious anthias that thrives in calmer reef lagoons across the Indo-Pacific.
Stokes' star coral
CoralDichocoenia stokesii
A tough Atlantic stony coral with distinctive elongated polyp mouths.
Striate Finger Coral
CoralMadracis myriaster
A finger-shaped Atlantic coral with an impressively wide depth range.
Striped Bum Coral
CoralHeterocyathus aequicostatus
A free-roaming coral with a live-in worm chauffeur keeping it mobile.
Striped Poison-fang Blenny
FishMeiacanthus grammistes
A venomous-fanged blenny that other fish mimic for protection.
Sun Coral
CoralTubastraea chloromura
A rare subtropical sun coral from Hong Kong's reefs, thriving in low light.
Sun Coral
CoralTubastraea coccinea
Brilliant orange polyps that only open at night. And demand to be fed.
Sun Coral
CoralTubastraea megacorallita
A rare subtropical sun coral from Japan's reef slopes, built for low light.
Sun Coral
CoralTubastraea violacea
A rare subtropical sun coral from Hong Kong's reef slopes, thriving in low light.
Sunset Cup Coral
CoralLeptopsammia pruvoti
A rare non-photosynthetic cup coral that thrives in low-light reef corners.
Superficial Coral
CoralPsammocora profundacella
A low-profile encrusting coral with a wide range and understated charm.
Swales' Basslet
FishLiopropoma swalesi
A secretive reef gem that rewards patient, detail-oriented keepers.
Swissguard Basslet
FishLiopropoma rubre
A boldly striped little basslet that stays hidden but rewards patient reef keepers.
Swollen-claw Mantis
InvertNeogonodactylus oerstedii
A compact, punchy reef predator with claws built for cracking and crushing.
Swollen-knob Candelabrum
CoralEunicea mammosa
A branching gorgonian with distinctively swollen polyp knobs and bold candelabra structure.
Symbiotic Colonial Anemones
CoralParazoanthus brevitentacularis
A clinging colonial zoanthid that thrives in the shade of deeper reef zones.
Symbiotic Colonial Anemones
CoralParazoanthus franciscae
Soft, colonial reef polyps that thrive in low light and live symbiotically.
Tahiti Butterflyfish
FishChaetodon trichrous
A rarely seen Pacific butterflyfish from the islands of Tahiti.
Ten Coral
CoralMadracis kirbyi
A compact Indo-Pacific coral recognized by its distinctive ten-septum corallites.
Thin Birdsnest Coral
CoralSeriatopora hystrix
Delicate needle-tipped branches form airy thickets that reward attentive reef keepers.
Thin Fingers Coral
CoralPorites divaricata
A Caribbean finger coral that keeps its tentacles out even in broad daylight.
Thompson's Tang
FishAcanthurus thompsoni
A deep-reef plankton feeder that breaks the surgeonfish mold entirely.
Threadfin Anthias
FishNemanthias carberryi
A schooling reef anthias that holds its own unless bullied by tankmates.
Threadfin Butterflyfish
FishChaetodon auriga
A wide-ranging Indo-Pacific butterfly that grazes reefs, rubble, and everything between.
Threespine Frogfish
FishBatrachomoeus trispinosus
A long-lived ambush predator that looks like a rock and eats like a trap.
Threespot Angelfish
FishApolemichthys trimaculatus
A bold, reef-dwelling angel with three unforgettable spots and a big personality.
Tiger Angelfish
FishApolemichthys kingi
A rare South African reef angel with bold, tiger-like patterning.
Tiger Blenny
FishEcsenius tigris
A tiny, rarely seen blenny from one of the most remote reef systems on Earth.
tiger pistol shrimp
InvertAlpheus bellulus
The shrimp that blasts prey with a sonic snap and shares its burrow with a watchful goby.
Tiger Puffer
FishTakifugu rubripes
The fish behind fugu. A massive, long-lived puffer with serious presence.
tiger tail sea cucumber
InvertHolothuria thomasi
A bold, patterned sea cucumber that earns its tiger-stripe name in the reef tank.