DEWENWILS 3 FT Automatic GFCI Extension Cord Outdoor, 12/3 Gauge Extension Cord for Multiple Appliances, Heavy Duty Power Cable with LED Lighted 3 Prong Plug, Yellow, UL Listed

No shock grounding probeGFCI 3 Way Would this be enough to keep me safe? TBH, after reading about that Reef2Reef member dying due to a shock a couple months ago, I have been very hesitant to do anything tank related and it's led to a bit of neglect. I also unplug my gyre and heater before I put my hands in the tank for whatever reason.