Shane
> -----Original Message-----
> From: Todd Crail
> Sent: Thursday, June 26, 2003 1:35 PM
> To: nanfa_at_aquaria.net
> Subject: Re: NANFA-- Electricity and thinking aloud...
>
>
> Well that solves that! I knew it was worth typing this all up.
>
> It's the tank, the I-beam is pulling the voltage from the
> tank. Time to
> drill some holes, mount some screws and hang some wires.
> That'll take care
> of it until we can solve the ground issue in the line. Might
> not be a bad
> permanent solution either. Or... I could hang them to the
> copper pipes and
> get it to the true ground.
>
> In any case, it's time to stop shocking these animals!
>
> Thanks Nick!
>
> Todd
>
> ----- Original Message -----
> From: "Nick Zarlinga" <njz_at_clevelandmetroparks.com>
> To: <nanfa_at_aquaria.net>
> Sent: Thursday, June 26, 2003 1:21 PM
> Subject: RE: NANFA-- Electricity and thinking aloud...
>
>
> > Grounding a house is to the water line, and also a rod sunk
> 8 ft into the
> > ground connected to the electrical box with a number 4 (I
> think) solid
> > strand copper wire.
> >
> > If you shut everything in the tank off, do you still get
> any voltage if
> you
> > ground to the I beam? Not sure how false readings come
> about but I know
> > that it is likely.
> >
> > Nick Zarlinga
> > Aquarium Biologist
> > Cleveland Metroparks Zoo
> > 216.661.6500 ext 4485
> >
> >
> > -----Original Message-----
> > From: owner-nanfa_at_aquaria.net
> On Behalf
> > Of Todd Crail
> > Sent: Thursday, June 26, 2003 12:57 PM
> > To: nanfa_at_aquaria.net
> > Subject: NANFA-- Electricity and thinking aloud...
> >
> >
> > Okay. Everybody's down in the basement, and in good time
> too. The house
> > upstairs has been up to 87 degrees the last couple days and
> the systems
> have
> > enjoyed only a slow rise into the mid 70's. It's also
> SERIOUSLY cool to
> be
> > able to sit in one place and watch all 3 tanks, have food
> and supplies all
> > in one place... Basically, if you have the means, it comes highly
> > recommended :)
> >
> > However, because so many things have changed at once,
> troubleshooting has
> > been difficult...
> >
> > Basically, because something _did_ change.
> >
> > I was minorly concerned when I began noticing a little bit of
> ectoparasites
> > come and go on the fish in the first 75 gallon to go down there. We
> played
> > with aeration, it went away... It came back, I tested
> Nitrogen culprits
> and
> > all that rot. Nothing... I fed heavy and it went away and
> comes back
> every
> > couple days, feed heavy, rinse and repeat. That was with
> bulletproof fish
> > like Pumpkinseeds.
> >
> > With the consequent moves of the 75 rainbowfish and 30
> natives, I'm seeing
> > similar effects on those animals. A little bit o' ich here
> and there on
> the
> > rainbows... Less than usual color on the natives. Southern
> Red-Bellied
> and
> > Red-Side Dace look really rough. Again, no nitrogen
> culprits, pH normal
> > range. So there was zero change from the move. If anything, due to
> > waterchanges, things were better in the NO3 land of hate.
> >
> > I'm running Dissolved Oxygen tests right now with a lab
> grade probe. The
> 30
> > gallon is the most heavily stocked per gallon of the
> systems. At the end
> of
> > the photoperiod last night, the DO2 was at 6.0 ppm, this
> morning after 11
> > hours of darkness, 5.2 ppm. Nothing to scream and shout
> about there. I
> may
> > try and stabalize this later, but we'll tinker after the
> current issues
> are
> > solved. I just began on the 75 native tank... 5.5 ppm
> after 11.5 hours of
> > darkness. With the overhead lights turned on, it began to
> raise. I was
> > amazed that such little photo-stimulation could have that much of an
> effect.
> > Pretty neat, working as designed. I expect to see it raise
> to the 6.0+
> ppm
> > range and also find the same in the 75 rainbow tank.
> >
> > So back to my good friend electricity.
> >
> > _I_ did the wiring in the entire basement ;) My uncle, who is an
> > electrician, is coming to verify my work on Monday. But if
> I could solve
> > these guy's environmental issues prior to his visit, that'd
> be great.
> What
> > I'm concerned about is that I do not have my lines at ground.
> >
> >
> > First question: Are iron support I-beams typically used as
> the earth
> ground
> > for a house?
> >
> >
> > If I connect from the tank to the I-beam with a
> multimeter... I get about
> 50
> > volts (which would shock the snot out of about anything) in
> each tank.
> > However, I'm not sure which way the current is going. If
> there's stray
> > voltage on the I-beam from other circuits, well, that sucks
> to send into
> the
> > tank.
> >
> > If I connect to a metal object (like a strip light frame)
> from the tank, I
> > find about 7 volts in each tank. However, I'm suspicious
> that since these
> > objects are plugged into the same circuit I worked on, that
> the voltage is
> > just fluttering off into some nebulous void, or more
> specifically, not
> > getting removed from the tank. Not a good ground, and possibly only
> pulling
> > 7 vots off the 50 that are really in the tank.
> >
> > I don't get _anything_ at all if I connect to the metal
> conduit, but I
> think
> > that's by design :)
> >
> >
> > Second question: Can a false ground be created by screwing
> in a metal
> > object (like a heat sink for a vho ballast) into
> unconnected wood on the
> > frame of the house?
> >
> >
> > What I'm thinking of doing is braving the heat of the attic
> (it was about
> > 150 last time I went up there yuck!) and dragging these
> heat sinks out.
> I'd
> > rather have them electrifyed than my fish and can just connect my
> grounding
> > probes using copper braid to these things. They have nice
> screw holes and
> > all that wrot, so I think they'll work... But I wanted to
> really think
> this
> > out before I dehydrated myself in 20 seconds or less lol.
> >
> > I'm 95% sure it's electricity. But I wanted to type all
> this out so it
> > would be clear in my mind what's doing what... And possibly run into
> someone
> > else's thoughts as they would be very appreciated to be voiced :)
> >
> > Thanks
> > Todd
> >
> > "The nation behaves well if it treats resources as assets
> > which it must turn over to the next generation increased,
> > and not impaired, in value."
> > - President Theodore Roosevelt
> > http://www.farmertodd.com
> > --
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> Fishes Association
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http://www.nanfa.org
/-----------------------------------------------------------------------------
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/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
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/ nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
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/ For more information about NANFA, visit our web page, http://www.nanfa.org