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.

Melichthys niger

A calm, reef-going triggerfish that's actually safe for community tanks.

Acanthurus coeruleus

A bold Atlantic surgeon fish known for cleaning sea turtles in the wild.

Acanella arbuscula

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

Enchelycore carychroa

A compact reef moray with rich brown patterning and a surprisingly manageable size.

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.

Echidna catenata

A crab-hunting moray that will crawl onto land to chase down its prey.

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.

Bodianus pulchellus

A reef-safe wrasse relative that moonlights as a cleaner fish when young.

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.

Calappa flammea

A brilliantly patterned box crab that buries itself and cracks shells with ease.

Pomacanthus paru

A bold Atlantic giant that pairs for life and rules its reef corner.

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.

Sphoeroides marmoratus

A hardy Atlantic puffer with a taste for crunching hard-shelled prey.

Pomacanthus maculosus

A bold, large-growing angel that thrives where other reef fish fear to tread.

Chaetodon lunula

A bold, raccoon-masked butterflyfish that prowls reefs after dark.

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.

Fromia indica

A vivid reef sea star that's more forgiving than most of its relatives.