The Purple Linckia Star, also known as the Purple Sea Star or Leiaster Sea Star, is a deep 'fuzzy' purple and has long cylindrical arms. This unique sea star can be differentiated from its relatives by its bright yellow tube feet and fuzzy appearance on close inspection. This sea star is one of the most popular with reef enthusiasts and thrives when maintained in good water conditions. A very active star, this species is normally visible during the day..