stray Voltage - what is acceptable in a reef tank ?

[Kevin Finocchiaro]

My stray voltage in my mixed reef tank varied from .25 to 1.25 volts according to a volt meter, is this an acceptable limit ?

The reason I checked current was to rule out causes for why a group of my zoa's closed up a few weeks ago and have not reopened yet. I also have a grounding probe in my tank to prevent electrical issues.

Anyway, what is the stray voltage number in your reef tank, and do you think that number is affecting any of your corals ?

 

[Sump Crab]

I have never tested for voltage. I just use trial and error by unplugging things until I dont "feel" the electricity on my finger at the waters surface anylonger. Once I find the culprit I replace it.

 

[WVNed]

Mine is around 7 volts with the ground probe out.