Thanks for the feedback guys. Here's an interesting update. So I THOUGHT it was the skimmer pump that was causing the voltage readings in my tank. As usual, the answer is a little more complex. The voltage reading in my tank is normal and at least mostly due to induction, not necessarily an electrical leak or short. I can not confirm this 100% b/c this all started with me feeling a zap which I have not been able to replicate since the 1 and only time it happened when changing out my DoS water line (in the basement, below the the tank which is in the main floor of the house).
Here's a wonderful post where
@Wiz had a similar issue and
@Brew12 answered beautifully.
Okay so long story short I am having issues with some of my coral. A lot of it is fine but some are not. Stray voltage was brought up as a possible cause. I checked with a multimeter and got a reading of 44 at the highest. Which I'm told is not good. I unplug each thing that sits in the water...
www.reef2reef.com
Many thanks to
@Brew12 and those who answer so completely and are a value to all of us in this wonderful hobby.
As for the skimmer, I will hold off until I can justify it but I really do want to get a slightly beefier and quieter skimmer than my Vertex Omega 150. I really do want to find out what that skimmer is.
If I find the source of my zap, I will update this thread.