Zoanthid and Palythoa are both colonial type corals, meaning they form a colony of individual polyps all living together. They are commonly referred to as zoas and palys. As they are very similar corals, I have combined them into one article. Zoas and Palys are both very hardy soft coral placing them amount the easier to keep corals and making them a excellent choice as corals for beginners. These corals can come in some spectacular colors and color combinations, among the most amazing colors to be found in any soft coral. For these reasons, they are kept by advanced and new hobbyist alike. I have also added star polyp corals and glove polyp corals into this article as they are also colonial corals with very similar requirements and hardiness when compared to zoas and palys. The below will outline the requirements to keep these corals healthy and thriving in your tank.