"Boomer" wrote in message ...
http://www.aquarium.net/1298/1298_3.shtml

I read this before and I strongly disagree. Let me quote something terrible:
"So if you now accept this as the normal case for SW tanks, you begin asking yourself
if this is a problem. I have discussed this with several educated folks, and we have
concluded that the minute currents in the tank, due to grounding with titanium probes,
are much less significant than unterminated voltages on the order of tens or hundreds
of volts" - this is totaly FALSE. And I have explained this already based on an
example with standing on 10th floor and on the 2nd floor. Standing on the 10th floor
(unterminated voltage) is not dangerous until you fall down (create a current flow).
And by adding grounding probe to those detected stray voltages you are creating
"minute currents" on the levels about 0.1-1mA even if all devices are in good order.
I do not know Gerry Parker, but I can only say it is not enough to have an access to
labolatory grade test equipment - you also have to know what are you exactly measuring.
The test equipment unfortunately will not do the thinking part for you...

http://avdil.gtri.gatech.edu/RCM/RCM...ingProbes.html

This one, in oposite, is very good and convincing.
"In conclusion, the addition of a "grounding probes" will guarantee an electrical
current flow in your aquarium and may induce erratic behavior or disease in your fish.
If you have defective aquarium appliances that are creating a current path in your
aquarium by using the salt water as a conductive medium, then the solution is to repair
the appliances or replace them... not divert a portion of the current into a "grounding probe"."

This is exactly what I am trying to say here. "NO" to grounding probes - period.