Red Flower Pot Coral This coral is rounded or ball-shaped, and is not overly aggressive, but space should still be provided between itself and other neighboring corals. Its polyps can extend far past its base into the reef aquarium, where it can sting other species of corals. Clownfish will often be found in association with the Flowerpot Coral and play in its polyps if no anemone can be found in the reef aquarium. Scientific Name: Goniopora sp Diet: Algae and Brine Shrimp Approximate Size: 3 to 5 inches