My goal is not to force you to change your mind.
My goal was to express my opinion on this subject.
It is up to each of us to make the best decision
in order to care for animals we take our responsibility for.

I know !

As much as the 'theory' about stray voltages is appealing, and might explain
some strange or weird behaviors of our fish, including causes for HLLE in some fish,
no evidence has been shown to support such allegations.

there is some evidence but as i hinted to the study basically says we need to study it
which isnt enough.

Please, describe your setup in more details. What do you use for water circulation?
What devices are submersed in the water column? Where is the probe placed in the water?

being a preditor tank the ONLY circulation is from the sump to tank (and back duh )
the sump is a 20long
the tank is a 75 and completely covered in diatom algae

the only thing in the tank is the ray, a porcupine puffer, a 4" very fine sand bed (forget
dsb the ray tosses it over and over) and a ground probe (not the only one, not always in
there)


as its outside and as outside is easy to get to dirt to ground it instead of using the
ground wire from the main i ran a seperate wire 10gague solid copper to a 10' grounding
rod burried about 9' deep its all of 4' from the sump to the rod the box from the main has
a circuit breaker plus one of them hard cutoff switches the breaker is a gfci breaker,
this is attached to both ground probes and the canister heater one ground probe is in the
sump the other is in the tank. the heaters grounded but I THINK that its only the outside
thats really grounded not the part that touches the water when its working, ive tested
this a few times and to the best i could come up with this is the case.

I have 2 skimmers both americal typhoon's ran with rio 3500's with the rio rtv adapter
YES IVE CHECKED THEM THERE NOT THE CAUSE figured id get that straight out because w/o it
ppl are gona jump on these poor rios

the return pump which ive checked out over and over is a slightly older little giant 3-md
something

there is a canister heater which probibly hasnt even flickerd sence april and a fan on a
thermostat its ran on sence april

tank temp is kept around 72~74tops

i get the same very very small stray voltage going through the probe

What do you mean "voltage going through the probe"?
I have already explained here a mistake people do measuring the voltage.
You can prove me wrong by using very different voltmetter and measuring
the voltage again. Tell me please what you have read from both readings.

ill have to dig up details ive posted them before and while ive done it a few times, id
like to not mess up the details.
ive used analog and digital meters in several AC and DC modes, all good meters.

for all I can tell there is NOTHING in the tank adding to
any current besides the tank/water/fish

Tell me more how did you find out about this.

trial and error and a few dead rays I should point out the "for all I can tell" part
one more time.

though I havent taken any scientificly acurate method of chasing down
whatever is the cause, maybee i will probibly wont, i like the guy
but what i have is working

I am glad you are happy. But you can help others adding more details
about your setup. Please do.

ill be glad to do any tests you can think of in the interest in providing a better place
, but I'd like to not re do them all, the last time I went through all of these I lost a
ray, there $80 a pop Id rather not kiss this one bye bye along with the $80 to get a
replacement (side note good ad for live aquaria every time ive had to replace them they
have been real good about getting one that fit my wishes)

I am not an electronics expert, but ive been around the block many times. all the major
electrical work like the grounding rod and the run from the mains was done by a licensed
electrcian as rqd by local code I even went as far as having it all inspected by a
different guy just to make sure it wasnt something fsked up with the first guys wiring

--
richard reynolds