Diadema savignyi is a visually stunning long-spined sea urchin native to Indo-Pacific reefs. This extra large specimen boasts elongated, delicate spines that provide an impressive display in mature marine aquariums.
As a primarily herbivorous invertebrate, Diadema savignyi plays a valuable role in controlling algae growth, helping to maintain a balanced and healthy reef environment. However, due to its long spines, it requires careful handling and placement to avoid injury to both the urchin and aquarium inhabitants.
Care Recommendations:
- Feeding: Primarily grazes on algae and biofilm. Supplement diet with dried seaweed (nori) or specialised invertebrate foods if natural algae is insufficient.
- Compatibility: Generally peaceful but should be housed with non-aggressive tank mates. Avoid housing with species that may prey on or damage the urchin.
- Reef Safety: With caution. While it is reef safe, the long spines can damage delicate corals if the urchin moves through tight spaces.
- Placement: Provide ample rockwork and crevices for shelter. Ensure the aquarium is mature with stable water parameters.
- Water Parameters: Maintain stable marine conditions with temperature 24-27°C, salinity 1.023-1.025, and good water quality.
Due to its size and delicate spines, Diadema savignyi is best suited for experienced hobbyists with established reef systems.
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