Reefstarter2, let your friend know stories like his hit home over here at RC. I feel bad for his situation and IMO Coralife is very much responsible. An aquarium hobby company selling an electrical power strip product which at first glance would be considered for aquariums, yet with barely visible letters it has a warning stating "not for aquarium use". I hope he sues the hell out of them. If he's up to it he should join the discussion over here.
Kalen, this is what I did. Post #19 has all the details. My setup is not cheap,mbut its robust, long lasting and versatile. If you don't want to invest that much, I know some powerhead manufactuers sell back ups. Ecotech, Jebao.
http://www.reefcentral.com/forums/showthread.php?t=2440002
I don't know why people have trouble with T5's. Considering commercial hydroponic growers likely use them and GFCI perhaps that would be a good place to ask questions. Lots of grow supply companies. I wonder if it would still trip if it was plugged into another outlet on the circuit and not directly into GCFI outlet. Remember, equipment doesn't need to be plugged directly into a GFCI a outlet. A GFCI outlet simply needs to be installed on the circuit.
I get what your saying. The main design purpose of a GFCI is to eliminate a person from being electrocuted by becoming the ground if for whatever reason the ground is lost on the circuit. However, it will prevent an electrical fire or at a minimum stop feeding it electricity. In the case I noted in the first post, had the hobbyist had his powerstrip on a GFCI outlet the circuit would have been shut down prior to it catching fire.
There is a reason code requires wet areas to have protected outlets and as soon as you install a tank, that area becomes a wet one. From an electrical standpoint everything could be just fine, but if a pipe or tank springs a leak and it penetrates an unprotected outlet that could spell absolute disaster for your family.
Are there some situations that it wouldn't make a difference, perhaps, but a meteor could hit my house tomorrow. My point is we need to make every effort to eliminate possible disasters. Installing a GFCI is smart and will eliminate most of them.