The Birdsnest Coral (Seriatopora hystrix), also known as Bush Coral or Needle Coral,  is a species of small polyp stony (SPS) coral that has a very intricate and spindly skeleton. They have small colorful polyps that provide beautiful, vibrant colors. They do best with high lighting and moderate to high flow. As most SPS, they are susceptible to parameter water fluctuations and should be kept in stable systems with reef safe fish.