You can put me down as a no for your original question, but I do use them. Here's a reason to consider using them though, building code (at least in Alberta) states that any outlet within 1.5m of water needs to be GFCI protected. If you have an electrical fire in your house (regardless of whether the aquarium caused it or not), and the investigator finds that you have code violations, it's likely that they'll void your insurance and you'll be out big bucks... It's been my experience that insurance finds any way they can to not pay what they owe you
