Let me clarify one thing, my comment about your roots was towards being a reefer, if you love and have the passion as most of us do, eventually you will want to learn more about our Natural Reefs, nothing more to that statement, sorry if it was misunderstood, thanks for clarifying your experience in FW, that was all I was wondering about, as anyone would with such a nice set-up as yours.
PS, I use a GFIC on everything, they are used for your safety in a Milliseconds they will trip on a dead short, which would prevent you from getting a major shock. Using a ground probe can be good, it also can mask a leakage or problematic stray voltage, eventually that could cause a shock of burn of equipment, not necessary being monitored by the GFIC, so it is a toss.