Mushroom corals are great corals for beginners because they are hardy, beautiful, and grow well in home aquariums. These corals can be found in a wide assortment patterns and colors in blue, red, green, brown, and purple. Mushroom corals reproduce rapidly in captivity and will spread over rockwork moving toward the light. Ricordea, a popular species of mushroom coral are desirable for their bubble-like appearance and vibrant colors. Some mushrooms have stinging tentacles that can damage other coral so should be placed carefully.