I bet I have stray voltage

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tiberius

Guest
Hello Reefers,
I have been still reading and reading. No wonder no one answered my posts. This subject has been burned up. I lost my first fish of 21 years 4 weeks ago. Since then I have lost 3 more. All were firefish. One I had for 6 years. I never noticed anything wrong with my goby before he went. But, with the firefish, all of them had bad fins before they went. I just read a post where the stray voltage in their tank caused their fish to have fin rot. I never thought they had fin rot just stressed from fighting each other. But, tomorrow or later today, I am having my neighbor put a GFI in. I ordered a titanium grounding rod and will put that in later this week. He will check for stray voltage. I also noticed my tang whipping around a bit like he was excited. I did pull the plug on the heater. But, I do have 4 powerheads that are still going. It will be a long day tomorrow before he gets here that is for sure.
I do have a meter but the posts state to put the red one in the tank and the other in the ground. I changed the outlet years ago to a 3 prong but I took the ground wire and wrapped it around the screw in the box. My neighbor said that the box might not be grounded so it is not right. Therefore, I don't want to stick the other wire in the ground figuring that might be the end of me!
I will find out the scoop tomorrow. To think, this all started because I almost had a fire!
 

reefnut

Active Member
You can put the black end of the meter into the neutral (larger slot) or the ground. Most tanks have stray voltage but I do not think it would be causing those kinds of problems?? My 55g had like 36volts once running through the water coming from a RIO pump… it did not trip the GFCI.
 
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tiberius

Guest
How much voltage would cause the GFCI to trip? I won't have the rod in till later in the week. But, since I have everything in that 1 outlet, it seems like I am going to have to have another outlet installed near the tank. I have read how people separate their motors in case 1 does trip while I am out then the tank won't die.
Did you have a rod in your tank when you had the 36 volts running through it?
 

bitte

New Member
I think I may have had a similar stray voltage in my tank that caused my purple tang to get what looked like fin rot and HLLE. I have since purchased a grounding probe and moved the tang to QT. His fins are healing and his HLLE looks to be slowly clearing up. Haven't checked with a voltage meter, though.
 
T

tiberius

Guest
Originally Posted by jfingers088
what is stray voltage?
From everything I have read on these boards, it is when an electrical device gets a crack and water seeps in starting it to leak the electricity into the tank.
 

92protruck

Member
I'm not an expert but I would define stray voltage as an electrical field, electromagnetic or inductive, created by motors and some types of lighting like vho. a cracked piece of equipment is more like a dead short btwn hot and neutral...very bad.
 
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