Red Tuxedo Urchin

Red Tuxedo Urchin requires a minimum of 30 gallons for healthy adults. The minimum is based on the species' adult size (2-3 inches), territorial range, and behavior pattern. Most Red Tuxedo Urchin sold at small juvenile size will reach full adult size within 12-24 months and the system must be sized to the adult, not the juvenile.

The Red Tuxedo Urchin is rated intermediate difficulty on this care sheet. It needs a tank of at least 30 gallons, a temperature of 76-80°F (24-27°C) and pH 8.1-8.4. Adults reach about 2-3 inches and live 3-6 years. Red Tuxedo Urchin (Mespilia globulus) is a intermediate-care saltwater species that thrives in tanks of 30 gallons or larger with stable parameters.

Red Tuxedo Urchin requires standard reef parameters held tightly stable: Temperature: 76-80°F (24-27°C) Specific gravity: 1.025 (refractometer-measured) pH: 8.1-8.4 Alkalinity: 8-9 dKH Calcium: 420-450 ppm Magnesium: 1300-1400 ppm Ammonia + nitrite: Both 0 ppm Nitrate: Under 10 ppm Copper: 0 (lethal to invertebrates) Red Tuxedo Urchin is sensitive to copper - never medicate the display tank with copper if Red Tuxedo Urchin is present.

Red Tuxedo Urchin is a algae grazer. Provides natural algae control by grazing on filamentous, hair, and turf algae throughout the tank. Supplemental nori sheets and algae wafers ensure adequate nutrition when tank algae is depleted. Avoid copper-based algaecides - they kill Red Tuxedo Urchin. Feed Red Tuxedo Urchin appropriately for its size + activity level.

Red Tuxedo Urchin is generally peaceful and compatible with most reef community species. Avoid keeping with predatory fish that view inverts as food: large wrasses (especially halichoeres + thalassoma), triggerfish, pufferfish, and certain large angelfish. Multiple Red Tuxedo Urchin can share a tank but compete for food. Browse care guides for tankmate-compatibility tables for Red Tuxedo Urchin and similar species.

Red Tuxedo Urchin reaches 2-3 inches at adulthood with a captive lifespan of 3-6 years with proper care. Many marine inverts molt periodically; provide adequate calcium and a stable parameter regime to support healthy molts. The minimum is based on the species' adult size (2-3 inches), territorial range, and behavior pattern.

Red Tuxedo Urchin is sensitive to copper, ammonia spikes, low oxygen, and rapid parameter swings. NEVER use copper medications in a tank with Red Tuxedo Urchin. Symptoms of stress: reclusive behavior, color loss, refusal to feed, abnormal molting (incomplete or stuck molts). Most Red Tuxedo Urchin deaths trace back to acclimation shock or parameter mismatch - drip-acclimate over 45-60 minutes when adding to a new tank.

Red Tuxedo Urchin (Mespilia globulus) is native to Indo-Pacific reef ecosystems, with wild populations distributed across coral reefs, sandy lagoons, and rocky tide pools. Captive specimens are typically wild-collected; some species are starting to be aquacultured but most Red Tuxedo Urchin sold today still comes from wild reef collection. Sustainable sourcing matters - look for vendors who can verify their collection practices, and consider aquacultured alternatives when available.