i have a blue carpet anemone that has been doing great for about 6 years now i guess. it was actually the very first thing i put in my tank, making it the first saltwater animal i ever kept. this thing has lived through 2 tank crashes and doesnt seem affected at all. i have kept it under pc lighting, and metal halide. i have gone through periods of not feeding it for months on end to feeding it every day. ive had times where my nitate tests kits were such a deep red that you could barely see through them, and ive had times where there were 0 nitrates. the only real difference ive seen is the size. it has varied from maybe 10 inches to a foot and a half. in my experience, if you feed it too often, it sometimes gets unhappy and moves to a new spot. you also usuallly ave to wiggle the food aroung a bit in order to get a feeding response from it. they have a pretty powerful sting and your reaction to it will get worse with time. the first dozen or so times i got stung, nothing. but recently, ive been stung and had welts for a couple of months. ive only had them eat sick fish, and a brittle star that wandered in the wrong direction, but healthy fish seem to stay away from it. they will want some sand to bury their foot in, and a rock to prop themselves up on so they are kind of lounging into the sand with a rock at their back. i thinkthey seem pretty hardy, and in fact, i was just reading a thread a bit ago where they were propagating these by just cutting them up, and they all healed right up without any probs.
