I tried two varieties from WWC, I probably was pushing it as I had no coralline and my tank was around seven months old. Both had rapid tissue necrosis and died very quickly. Seven months later I have had coralline for months and I am growing SPS well. Those two birdsnest, a kryptonite candy cane, and a Yuma mushroom my goby continuously buried are the only corals I have lost(knock on wood). Never the less out of spite I plan to grow birdsnest and candy cane coral now that my tank is more mature.