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 one by one. Each unplug dropped the level by about 2 or 3 points. One particular pump dropped it by 24 points. So I think I found the reason my voltage is so high. But this led me to wonder if each one puts in two or three volts how much is acceptable. Or normal even. If I unplug the Maxi jet that is the problem I still get a reading of about 20. Is that okay?