The Longspine Black Urchin has a black, brown color. The Longspine Black Urchin may grow to 3 (not counting spines) inches. Omnivore. It likes to eat Eats green filamentous algae, corraline algae and may mow through colonies of polyps and damage corals.. The Diadema savignyi is generally peaceful toward other tankmates. Many consider the Diadema savignyi a medium-maintenance specimen. Venomous, spines are slightlypoisonous Coralline algae eater. Ultra-sensitive to alkalinity changes, and will be venomous if it dies. Spines can emit painful venom. Be careful with copper-based medication and extreme nitrate levels. Keep water quality high (SG 1.023 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F). The Longspine Black Urchin is commonly collected from Indo-Pacific. The Small size will come to you generally 3 inches; the medium generally 5 inches; the large generally 7 inches.  

"This item will only ship by Air Cargo Delta DASH or UPS Next Day Air only! Alternatively, you may pick this item up at our warehouse FREE of charge via normal will-call. Some items may be prohibited in your state or region. An additional fee may be required depending upon the season and weather conditions. Please call us to resolve any unanswered questions ahead of time prior to your order and agreeing to our legal. All animals receive our "Arrive Alive Guarantee" Thank you! Living Reef Imports LLC. (800)722-0421"