Zenopontonia rex is a small, striking shrimp species renowned for its symbiotic association with sea cucumbers. This pair is available in various sizes, making them suitable for a range of marine aquarium setups.
Care Level: Moderate – requires stable water parameters and a host for optimal health.
Diet: Omnivorous scavengers; they feed on detritus, small particles, and leftover food. Supplement with finely chopped meaty foods or specialised invertebrate pellets.
Compatibility: Generally peaceful and reef safe, they coexist well with other non-aggressive invertebrates and fish. Avoid housing with large predatory species that may view them as prey.
Reef Safety: Yes – they do not harm corals or sessile invertebrates.
Minimum Tank Size: 30 litres (approximately 8 gallons) to provide adequate space and stable conditions.
Lighting and Water Flow: Standard reef lighting and moderate water flow are suitable. Ensure water quality is maintained with regular monitoring.
Placement: Best kept in tanks containing their natural hosts, such as sea cucumbers, to encourage natural behaviour and reduce stress.
Origin: Indo-Pacific region.
Maximum Size: Up to 2 cm in length.
Zenopontonia rex pairs are an excellent addition to reef aquariums for hobbyists interested in unique symbiotic relationships and peaceful invertebrates.


