Possibly the worst heater tragedy ever.I had a fishroom with 2x55gal 3x29gal and assorted smaller tanks. my 2ft iguana escaped his cage and in the process of climing around managed to spin the dial on the space heater to full.Cooked every fish in the room,it was over 100f in there when i went in.I know this is terrible for a first post,but it fit the topic