What types of corals are available for a coral reef aquarium?
Both soft and hard corals can be kept in an aquarium as long as the water is checked and changed regularly. Soft corals are available in small polyp colonies such as leather corals and gorgonians and large polyp colonies such as button corals and mushroom corals. Hard corals are available in two types. Large Polyp Stony (LPS) corals have large polyps and are the easiest hard corals to keep in an aquarium. LPS corals include torch corals and brain corals. Short Polyp Stony (SPS) corals have short polyps and are much more difficult to keep. SPS corals include acropora, cup corals, and branched corals.