Blastomussa coral , Blastos for short, are a low light large polyp coral, LPS. Blastomussa Wellsi and Blastoumussa Merletti are the two main species of Blastomussa sold in the reef aquarium industry today. They come in a variety of colors and patterns. The Wellsi has a large polyp and the Merlettie has a smaller polyp. They require low to medium light and low flow. They greatly benefit from regular feedings.