North Atlantic

Epizoanthus papillosus

A cold-water zoanthid from the North Sea, rarely seen in home aquaria.

Balanophyllia (Balanophyllia) helenae

A rare solitary cup coral from one of the ocean's most remote islands.

Acanella arbuscula

A deep-sea bamboo coral with a detailed, bonsai-like branching structure.

Montastraea cavernosa

A wide-ranging Atlantic boulder coral that anchors reef slopes across the Western world.

Madracis pharensis

A deep-water encrusting coral with a fascinating split personality across its range.

Paramuricea clavata

A Mediterranean sea fan that shifts color from vivid yellow to deep purple.

Gersemia clavata

A cold-water soft coral that brings bold color to temperate reef displays.

Porites porites

A tough Atlantic branching coral that feeds actively even in daylight.

Parazoanthus anguicomus

Delicate white colonial polyps that bring a cool-water feel to reef tanks.

Desmophyllum dianthus

A cold-water deep-sea coral that thrives where most corals fear to tread.

Caryophyllia (Caryophyllia) cyathus

A solitary cold-water cup coral from the Mediterranean, rarely seen in reef tanks.

Alcyonium cydonium

A lumpy, lobed soft coral from cold northern seas, rarely seen in home systems.

Alcyonium senegalense

A soft coral from Atlantic waters, rarely seen but surprisingly approachable.

Alcyonium digitatum

A cold-water soft coral that thrives where most reef animals won't.

Muricea laxa

A graceful branching sea fan from the Western Atlantic that rewards attentive reefers.

Drifa glomerata

A cold-water soft coral that thrives where most reef species fear to go.

Caryophyllia (Caryophyllia) smithii

A cold-water solitary coral that thrives where tropical reefs fear to tread.

Alcyonium spitzbergense

A cold-water soft coral from the Arctic, rarely seen but genuinely fascinating.

Parazoanthus swiftii

A golden colonial zoanthid from Caribbean and Atlantic reefs, thriving in low light.

Favia fragum

A compact Atlantic coral that fits anywhere and forgives beginner mistakes.

Madracis decactis

A compact Atlantic reef builder with distinctive ten-rayed polyps and rich green tones.

Clavularia viridis

A hardy, low-light soft coral that spreads cheerfully across rock and substrate.

Gersemia fruticosa

A cold-water soft coral that brings polar ocean character to the specialty tank.

Paragorgia arborea

A deep-sea giant with bubblegum-pink branches found across the world's cold oceans.

Clavularia modesta

A low-maintenance soft coral that thrives where others struggle.

Oculina varicosa

A shapeshifting ivory coral that adapts its entire lifestyle to available light.

Clavularia borealis

A cold-water soft coral that surprises with its tolerance for low-light tanks.

Astrangia poculata

A cold-water stony coral that thrives with or without symbiotic algae.

Madrepora oculata

A deep-sea reef builder that occasionally ventures into aquarium-friendly depths.

Pseudocorynactis caribbeorum

A nocturnal Caribbean predator with sticky orange-tipped tentacles that can snag small fish.

Tubastraea columnata

A bold, non-photosynthetic coral that rewards patient target feeders with vivid blooms.

Tubastraea grandidentata

A non-photosynthetic branching coral that thrives in dim, current-swept reef spots.

Tubastraea megalostoma

A bold, non-photosynthetic coral that thrives in low light and rewards dedicated feeders.

Tubastraea ramosa

A brilliant non-photosynthetic branching coral that thrives in the dark.

Gersemia mirabilis

A cold-water soft coral that brings reef color to chillier tanks.

Alcyonium hibernicum

A cold-water soft coral that brings temperate Atlantic charm to the species tank.