Had these zoanthids in my previous 85G mixed reef tank. They were transferred to the 85G from a 20G. Kept under 2x65W Power Compacts in the 20G, then under 4x95W VHO
flourescent bulbs after that. Got them complimentary from the friend that got me into the hobby... he wanted to provide me with a couple of corals to get started. Great guy. I had these from ~Dec. 2001 until I broke down and sold the 85G in the early part of fall, 2006. I miss that tank, the lighting, and the corals greatly.