Blue Velvet Nudibranch

Care Summary

The Blue Velvet Nudibranch is a sleek, arrow-shaped sea slug with iridescent blue and black coloration that moves gracefully across the sandbed hunting its preferred prey. It is one of the few nudibranchs with a practical use in reef tanks since it actively preys on flatworms, making it a popular but delicate solution for flatworm infestations. The challenge is that once the flatworm population is depleted, this species will starve unless you can source additional prey or transfer it to another infested system. Plan this as a temporary intervention rather than a permanent resident, and have an exit strategy ready before the food supply runs out.