I have had mine for 2 years and was always Pink and has shed numerous times always returning to the same pinkish color. I recently made a significant error by not reading the directions of the Kent Carbon which claims to be super ionic in someway. It recommends using only 1/4 cup for a 100 gallons and I put the average 2 cups I was using with Marineland Black Diamond, I believe it was, Carbon. Well, needless to say, the next morning when I looked at my tank most all soft corals were closed and the few SPS I had, were bleached white already, lost shrimp and crabs. The toadstool began turning white and is now White as a sheet of paper. I see it is still alive as the polyps still come out and occasionally look florescent green. I assume the new Carbon took most all of the beneficial elements out of the water causing this crash. Since then I have brought all of my main parameters back up to specs, and did a couple water changes. Now I am waiting for the slow process of my tank getting back where it was. I figure when My rose anemone's look full and normal I should be close. There are some elements, I don't have test kits for like Iodine, Potasium, and Stronium, but over time I should be able to get them back where needed.