I kept Green Anoles for about 12 years (Not the same colony, obviously, but I really love the little buggers). My first male had to have both his front feet amputated due to burns from a heat rock. He lived another 3 years, but I have never used them since with any of my pets. For a $7 lizard, I spent well over $300 on his surgery and meds, not to mention set up, UV lamps, basking lamps, etc.