SPS coral or Small Polyp Stony corals are identified by the small polyps on a calcareous body. Acropora, Mycedium, Stylophora, Heliophora and many more fall under the SPS category. Our SPS coral for sale definitely add a reef dynamic to any aquarium with their breath taking colors and structure. If you would love to add Small Poly Stony coral in your aquarium to add astonishing beauty then you are on the right track, however you must keep in mind the attention and environment these corals need before purchasing. If you want your SPS to thrive, a consistent source of Alkalinity, Calcium and Magnesium is required. That is why it is not recommended for beginner hobbyists to venture into Small Polyp Stony corals just yet.