Seriatopora hystrix Type: Small-polyped stony (SPS) Origin: Pacific, Indian Ocean and the Red Sea. Aquarium Needs - Lighting: Needs intense light. Water Quality: Good to high. Current: Adaptable (IMO) Supplemental Feeding: Not necessary. Growth Rate: Fast Frag Difficulty: Easy Personal Observations - Bird's Nest coral has quickly become my favorite coral in my current tank. For SPS, it seems pretty tolerant in my experience as long as the water quality is decent and it is basking in strong light. I have noticed it can live with pretty low alkalinity and calcium doesn't have to be way up there either. It is a good tell-tale of your aquarium... when my old Remora skimmer stopped from a jammed pump for a few days, it wasn't happy and it's polyps were not extended. Most of the time though it's a happy coral in my aquarium. A recent frag was branching in a matter of days it seemed. This coral is one easy fragger. You can literally break branches off and plug away. Not that I am recommeding that. Use cutters, gloves, etc. Safety first. Don't forget to give it some room as it will sting other corals. I've seen pink, beige, green varieties. I think there is a yellow out there too. I own 2 frags: pink and beige versions of Seriatopora hystrix. The pink is one of the most beautiful corals around in my opinion. I highly recommend this coral. And it's 3reef's first coral of the month. 8) PLEASE SHARE YOUR EXPERIENCES WITH THIS CORAL.