URGENT PLEASE HELP ! Shock everytime I put my hand in the tank

[mtlreeffreak]

I cant figure it out.. Yesterday every time i put my hand in the sump I got shocked I unplugged everything one by one until i figured out it was my old auto top of system..today my wife put her hand in the main tank and she says she felt a shock.. So i tried putting my hand in and I only get choked every so often ..

I have a vertex grounding probe in the display tank. is there any way to Test if something is leaking or if I have higher voltage than average?

please someone help me im worried i will lose all my clams and corals..

thank you.