Yellow Cucumber

Colochirus robustus

Identification	Small, compact body with bright yellow coloration and a knobby, textured surface. Branching yellow oral tentacles. One of the most colorful and manageable cucumber species.
Maximum Length	Up to 3 inches
Origin	Indo-Pacific
Minimum Tank Size	20 gallons
Reef Compatibility	Excellent

Behavior

Filter feeder that perches on rockwork and extends tentacles into the current to feed. Small size makes it manageable for many reef tanks. Active and visible during the day.

Diet & Feeding

Filter feeder. Captures suspended zooplankton and organic particles using branching oral tentacles. Requires regular dosing of liquid zooplankton or phytoplankton.

Cautions

Requires stable water parameters and regular target feeding to thrive long-term. Can release mild toxins if stressed. Do not expose to air during handling.