ive got one in my overflow, but i still get tinglies from time to time. might add another just cause electrocution sucks:biggrin:

Should have a GFI that way it trips via the ground probe rather then you providing the path.

I have one in my display, bought it at the local fish store.

http://www.jlaquatics.com/phpstore/s...oduct_ID=mc-gp

http://oceanaquatics.com/store/produ...ounding-Probe/

Easy as pie to hook up. One end is just a plastic probe, like a temp probe, and then plug the other end into an electrical outlet.

Does it matter whether it's direct into the wall or into a controller's power bar?

ah you're not a true reef aquariust until you've been electrocuted by your own tank. :shocked!:Sigh* ah the memories.

I would imagine the controller would be just fine, as long as you set that specific outllet to "always on"

I always run a ground probe and GFI.

If you find my thread where the arc went from my pendant to my forehead, when I had the probe out and was fine with it in, {current leaking from a stream pump}, you will see why, plus some good posts there from electric oriented aquarists.

I use a GFI instead. Otherwise, you're running the risk of zapping your fish.