Bonita, mine lasted 18 months and 2 years. Both were in perfect health until the end. Mine liked a shelf directly under a 250 watt MH maybe 12" below the surface. They got huge. I could see them feed when I used frozen cyclops eze and frozen plankton. At the end one was worried to death by a pair of clowns hosting it, and the other did the same thing; just quit extending polyps from the bottom side up and tissue then dissappeard. Good luck, the only long term success I have seen is a gentleman keeping them in a sump refugium! Also red is said to be the hardiest.