Sea Cucumbers

Sand bed processors

Sea cucumbers are detritivores that process sand, consuming organic waste and turning over the substrate. They help maintain clean sand beds in larger reef tanks. Some species can release toxins if stressed, so choose reef-safe species and ensure stable conditions.

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Species Guide

3 species

Black Sea Cucumber

Holothuria atra

Black Cucumber, Lollyfish

Easy · Reef Safe

Burnt Sausage Sea Cucumber

Stichopus horrens

Burnt Sausage Cucumber

Easy · Reef Safe

Tiger Tail Sea Cucumber

Holothuria thomasi

Tiger Tail Cucumber

Moderate · Reef Safe