Common Florida Urchin

Urchins have sharp teeth at their center which they use to scrape algae, including coralline algae. They are able to scratch acrylic so are recommended only for glass aquariums. Echinoderms such as urchins are extremely sensitive to changes in the water quality. They require well established aquariums for both water stability and sufficient food supply.

This beautiful urchin has short, thick spines which may be light lavender to deep amethyst in color. It is omnivorous, eating algae and fish food. It is an opportunistic feeder and may not be safe with corals. It can grow to 6 inches.