Thanks for the lesson, this is why I love MFK. So we have decided that a ground probe won't help, how do people keep electric fish? not like you can put up a dived to keep the current away.
If you don't aggravate them, they won't shock you badly. Also, only put one arm at a time in the tank and you'll avoid the heart-stopping shock of lore. The only electrically dangerous freshwater fish I know of are the electric eel and electric catfish. Mormyrids and possibly some cats may use it for directionality, but cannot shock you.
The electric eel and catfish is why I was hoping that providing a quicker way for the electricity to get to the ground than through me. Like having a grounding probe and be standing on a nice and thick rubber mat while doing tank matenance.