Oceans Wonders Coral FRAG HUBS are perfect for securely holding all your frags in one convenient spot in your aquarium. They are made from the same material as our popular ceramic plugs and are fired at nearly 2000 degrees in a high-temperature kiln, making them 100% inert and safe for your reef. They never need to be cured and are shipped dry, ready to use.

An embossed surface helps accelerate coralline algae growth and gives each hub a more natural appearance in your aquarium.