You need a grounding probe asap then use an elecical meter to test the water while doing your unpluging research. I had a similar problem got a very slight buzz but found it to be a water heater that had been eaten away by the salt water.I am getting an electrical shock when I touch my reef water or the reef metal on my tank. I am trying to ID the faulty equipment by unplugging items of my tank BUT I don't know if I have properly found the faulty item unless I touch the water again and shock myself. Their must be a better way? Help? So far my fish are fine but I can't leave them all night in this distress.
suggestions please!!
180 gallon reef.
Neptune.
Best of luck stay safe, and always have a spare. If you see the probe tip giving of a fizzy cloud you need to take swift action..