The Urchin and Crab symbiotic pair is a captivating addition to any marine aquarium, showcasing a unique relationship between these two invertebrates. Available in various sizes, this pair is well-suited for reef tanks where they contribute to natural tank maintenance and add visual interest.
Feeding: Both urchins and crabs are generally omnivorous scavengers. They will graze on algae, detritus, and leftover food in the aquarium. Supplement their diet with marine algae sheets, frozen or dried meaty foods, and specialised invertebrate pellets to ensure balanced nutrition.
Compatibility: These invertebrates are peaceful and reef safe, making them compatible with most reef inhabitants. However, avoid housing them with aggressive fish or invertebrates that may prey on them.
Reef Safety: Yes. Urchins and crabs do not harm corals and can help control algae growth, benefiting reef ecosystems.
Care Requirements: Maintain stable water parameters typical of a mature marine aquarium: temperature 24-26°C, salinity 1.023-1.025, pH 8.1-8.4. Moderate water flow and lighting are suitable. Provide ample live rock for grazing and shelter.
Tank Size: A minimum tank size of 75 litres is recommended to provide sufficient space and stable conditions.
Adding an Urchin and Crab pair enhances both the ecological balance and aesthetic appeal of your marine aquarium.



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