I made this cake for a marine aquarium store that was hosting a frag meet. I made the clownfish, tang, and crab out of fondant and used black/blue edible food markers for the details. I made the seashells out of chocolate candy molds. The green algae and orange corals were made with royal icing. I used blue icing to ice the cake and purple and white icing for the bubbles. Brown sugar was used for the sand.