I have been successfully keeping two of the redish ones, they are doing fine. The recent neon green that i purhcased didnt fair so well...about 50% dead and then i moved it to the absolute top fo my tank, up with my sps and now it seems to be trying to recover, and maybe even making a come back... we shall see......so there def seems to be some variability with the hardiness by color/type......I am liking the alveopora that I have.... looks even better in my mind and is said to be more hardy and my experience agrees with that theory thus far as i have two peices that are branching type and doing well.