Wiring advice/help needed (voltage in tank)

[Wildechild_01]

I still dont think there is an issue with the devices actually leaking power into the tank I will admit the induced levels seem a little hight but depending on the quality of the equipment and the materials used induced voltages can be pretty high, i will check my tank when i get home and see what my results are like. It is worth double checking the GFCI hookups to make sure your white and black are in the right place, even if they are without the ground probe in the tank the gfci will likely not trip since all of the power going out will eventually make its way back through that same gfci assuming all of the equipment is run through it.

[gregzz4]

Those low voltages on your power bar are definitely messed up

[CM125]

I would try a different plug (even on a different circuit if you can) see what the results are