Purple Urchin

Purple sea urchins are striking additions to established reef aquariums, prized for their vibrant coloration and algae-grazing behavior. These hardy invertebrates help maintain a balanced ecosystem by consuming unwanted algae and detritus, reducing maintenance demands on your system. Care is straightforward for intermediate aquarists. Provide stable water parameters—salinity 1.023–1.025, pH 8.1–8.3, and temperatures between 72–78°F. Strong water flow and plenty of rockwork with crevices allow them to graze naturally and find shelter. Feed occasionally with dried seaweed or algae-based supplements if algae growth is limited. Avoid aggressive tank mates and sudden parameter swings, as urchins are sensitive to rapid changes. A thriving purple urchin signals a healthy reef—one where natural processes work in harmony with your care routine. Perfect for hobbyists ready to elevate their aquascaping with both function and oceanic beauty.