CoralSaltwaterIntermediate

Burnt Cup Coral

Cladangia exusta

A lesser-known Indo-Pacific coral that rewards attentive reef keepers.

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About

Found across Indo-West Pacific and Indian Ocean reef systems, Cladangia exusta is a coral that turns up infrequently in the hobby, which means solid firsthand husbandry accounts are still relatively sparse. What is known places it squarely in intermediate territory. Not a beginner's first coral, but not the white-knuckle challenge of some SPS species either. In the aquarium it appreciates high lighting, so positioning matters: give it a well-lit spot without dropping it directly under an intense beam before it has had time to acclimate. Moderate flow keeps the tissue clean and assists with gas exchange without buffeting the polyps. Being reef safe makes it a straightforward choice from a compatibility standpoint, and it can be incorporated into a mixed reef without the concern that it will chemically bully neighbors or encroach aggressively on surrounding corals. Because the species is not especially common in the trade, patience in sourcing and careful observation during acclimation are worthwhile habits. Keepers who do land a healthy specimen should focus on stability. Consistent water quality and gradual changes go a long way with a coral that may have already had a stressful journey from collector to tank.

At a glance

Type: Coral
Water: Saltwater
Origin: Indo-West Pacific; Indian Ocean; Indian Exclusive Economic Zone
Reef safe: Yes
Lighting: High
Flow: moderate

Care guide

Position in a well-lit zone but avoid intense direct beams during acclimation; gradually increase lighting over several weeks. Maintain moderate water flow to keep tissue clean and promote gas exchange without excessive polyp movement. This coral benefits greatly from stability. Avoid sudden shifts in parameters, lighting, or water chemistry. Feed occasionally with small zooplankton or phytoplankton if desired. Monitor closely after introduction since limited captive husbandry data means each specimen may have individual needs. Its reef-safe nature makes it compatible with most neighbors, but ensure adequate spacing to prevent growth conflicts.

Breeding

Limited captive breeding data available for this species. Propagation through fragging may be possible given its branching or colonial form, but specific techniques are not well documented in the hobby. Any fragging attempts should be made only on well-established, healthy specimens. Fragmentation tools should be sterile, and fragments should be placed in stable, dimly lit areas with gentle flow until new skeleton and tissue form. Success rates and recovery timeframes remain unclear due to the species' rarity in captivity.