The Watermelon Mushroom Coral are commonly referred to as the Corallimorphs or Mushroom Anemones. It features a similar color as watermelon and that is why it is more often referred as Watermelon Actinodiscus Sp. The Watermelon Mushroom Coral is best for beginner hobbyists as it is a hardy coral. It can be maintained in the aquariums having live rocks, sand substrates and an air stone for proper movement of water and oxygenation. It helps the Watermelon Mushroom Coral to tolerate the organic compounds that are present in the aquarium. It is best to place this coral under indirect light. The Watermelon Mushroom Coral features stripes and spots with mottled color variations. It has a round disk shape with a watermelon color pattern. It is also referred as ?False Coral? as it do not have any internal skeleton as other corals. The Corallimorphs do not contain any polyps for the collection of food; instead the Watermelon Mushroom Coral catches its prey by folding over themselves. It is advisable to keep the Watermelon Mushroom Coral in water having parameters of salinity between 1.025 to 1.027 and temperatures ranging from 74 to 79 degrees Fahrenheit. The aquarium water should contain the phosphate up to 0.05 ppm. Watermelon Mushroom Coral varies greatly in size and can grow up to 7 inches in size and needs a space of 2 inches from other corals. It is preferable to keep it in a tank of at least 40 gallons. The Watermelon Mushroom Coral can protect itself with the natural defensive mechanism, as it has stinging tentacles that can be extended through its cap.