just a little fyi, they are not impossible to keep, it just depends on which one you get. Some ARE partially photosynthetic. You have to know the source of where you are getting it from, in order to know if it is one of the photosynthetic versions. I wouldn't buy it at a LFS, unless they have had it for a long time, then it is probably a photosynthetic version. live aquaria offers a couple different colors of the photosynthetic versions, and it will say so in the description. Also, it will say it in the care level part, if it says medium, than it's photosynthetic partially (still requires feedings), but if it's labeled as expert only, then non-photosynthetic. Hope that helps a little more. A lot of people don't really know much about these corals, and they assume that they are all non-phosynthetic, but it's not true. if you are going to buy one in a LFS, pick out the ugliest one lol. The non photosynthetic ones tend to have almost neon colors to them, and very frequently have a white base between the polyps(white is a great indicator of non photosynthetic), and are very very bright in general. On the other hand, the photosynthetic ones tend to be a more dull in coloration and in the darker color spectrums (i.e. dark purple, dark red, dark orange, dark yellow, etc).
