Hey there everyone, someone I know with a 75 gallon fish only tank is having an emergency situation. Every time they stick their hand into the aquarium they get a shock from having their hands in the water. I was reading online that it’s called stray voltage? Someone suggested to un plug one thing at a time and see if the shock goes away. Does anyone have any advice what they should do? They have a 75 gallon aquarium with 1 heater, 2 powerheads, 1 pump, a sump, and aquarium light. Please if anyone has suggestions or could help out it would be very much appreciated!