Atlantic & Europe
The cooler side of the reef world, plus European freshwater — temperate species, Mediterranean reefs, and the North Atlantic.
115 species
African Blackchin Tilapia
FishSarotherodon melanotheron
A hardy West African mouthbreeder that thrives in brackish and freshwater setups alike.
American Zoanthid
CoralEpizoanthus papillosus
A cold-water zoanthid from the North Sea, rarely seen in home aquaria.
Apricaphanius baeticus
FishAphanius baeticus
A critically rare Spanish killifish that rewards dedicated keepers willing to help conserve it.
Arctic Club Coral
CoralClavularia arctica
A cold-water soft coral surprisingly well-suited to the home reef tank.
Balanophyllia helenae
CoralBalanophyllia (Balanophyllia) helenae
A rare solitary cup coral from one of the ocean's most remote islands.
Beaked Stony Coral
CoralEnallopsammia rostrata
A deep-sea reef builder that thrives where light never reaches.
Black Durgon
FishMelichthys niger
A calm, reef-going triggerfish that's actually safe for community tanks.
Blue Tang
FishAcanthurus coeruleus
A bold Atlantic surgeon fish known for cleaning sea turtles in the wild.
Bonsai Bamboo Coral
CoralAcanella arbuscula
A deep-sea bamboo coral with a detailed, bonsai-like branching structure.
Brick Coral
CoralSarcodictyon catenatum
A hardy Mediterranean soft coral well-suited to cooler reef systems.
Broad Sea Fan
CoralEunicella verrucosa
A branching temperate sea fan that brings Atlantic reef character to the cold-water aquarium.
Brown Encrusting Anemone
CoralEpizoanthus paxii
A low-light Mediterranean zoanthid that carpets rock faces in soft brown colonies.
Bushy Coral
CoralCladocora caespitosa
The Mediterranean's only reef-building coral, forming dense tubular clumps in shallow water.
Bushy Crust Coral
CoralSavalia savaglia
A Mediterranean deep-reef anthozoan that thrives where most corals fear to go.
Caribbean Chestnut Moray
FishEnchelycore carychroa
A compact reef moray with rich brown patterning and a surprisingly manageable size.
Cavernous Star Coral
CoralMontastraea cavernosa
A wide-ranging Atlantic boulder coral that anchors reef slopes across the Western world.
Cave Star Coral
CoralMadracis pharensis
A deep-water encrusting coral with a fascinating split personality across its range.
Cerith Snail
InvertCerithium sp
A tireless sand-sifter that earns its keep in any reef tank.
Chain Moray Eel
FishEchidna catenata
A crab-hunting moray that will crawl onto land to chase down its prey.
Chalice Coral
CoralAstroides calycularis
A cold-water Mediterranean coral that thrives where others struggle.
Chameleon Sea Fan
CoralParamuricea clavata
A Mediterranean sea fan that shifts color from vivid yellow to deep purple.
Club Carnation Coral
CoralGersemia clavata
A cold-water soft coral that brings bold color to temperate reef displays.
Club Finger Coral
CoralPorites porites
A tough Atlantic branching coral that feeds actively even in daylight.
Cluster Anemone
CoralParazoanthus anguicomus
Delicate white colonial polyps that bring a cool-water feel to reef tanks.
Cockscomb Cup Coral
CoralDesmophyllum dianthus
A cold-water deep-sea coral that thrives where most corals fear to tread.
Cornucopic Coral
CoralCornularia cornucopiae
A soft coral from European waters that rarely shows up in reef tanks.
creeping primrose-willow
PlantLudwigia repens
A hardy red-green stem plant that rewards even beginners with bold color.
Cuban hogfish
FishBodianus pulchellus
A reef-safe wrasse relative that moonlights as a cleaner fish when young.
Cup Coral
CoralCaryophyllia (Caryophyllia) cyathus
A solitary cold-water cup coral from the Mediterranean, rarely seen in reef tanks.

Dead Man's Fingers
CoralAlcyonium cydonium
A lumpy, lobed soft coral from cold northern seas, rarely seen in home systems.
Dead Man's Fingers
CoralAlcyonium senegalense
A soft coral from Atlantic waters, rarely seen but surprisingly approachable.
Dead Men's Fingers
CoralAlcyonium digitatum
A cold-water soft coral that thrives where most reef animals won't.
Delicate Spiny Sea Fan
CoralMuricea laxa
A graceful branching sea fan from the Western Atlantic that rewards attentive reefers.
Dense Carnation Coral
CoralDrifa glomerata
A cold-water soft coral that thrives where most reef species fear to go.
Devonshire Cup-coral
CoralCaryophyllia (Caryophyllia) smithii
A cold-water solitary coral that thrives where tropical reefs fear to tread.
Dojo Loach
FishMisgurnus anguillicaudatus
The loach that supposedly predicts the weather and definitely has personality.