I purchased 2 Peppermints maybe 3 months ago. I threw them in my prop/semi display tank to take care of an aptasia problem I was having on one rock. Well next day they came up missing and I never seen them since. I was told that once you put them in a tank you probably will never see them again. Well today I was feeding the tank and just happened to glance under a rock and there was one of them. I'm assuming the other one is probably there as well. It was just by chance that I looked in that one spot at that split second. Glad to see it. Thought one of my fish or fire shrimp chomped them up.:thumbsup: