I'm a rookie. Set up a new 28gal JBJ LED tank 5 days ago and two of these are popping out of the rock that was given to me from a tank that was taken down 6mos ago and the rock placed in buckets of salt water. The man that gave the rock to me said someone gave him these and he doesn't know the name or there reef compatibility etc. I hope these anemone's can survive the tank cycling! What is there name. So I can read up.