Thanks Colin. Ive had terrible luck with these... ive had two episodes of sudden death in them which interestingly coincide with when I have been away... Not that the person necessarily was guilty of negligence, more nievity. As I live in the room with all the heros, I am constantly subconciously monitoring temperature. Also, having kept all my animals for a wee while now, and having done a lot of research etc before getting them, I am far more in tune to picking up small problems and reacting to them... wheras such things may go entirely unseen by someone who is only completing a list of tasks.