Re: NANFA-- Fishy observations
Tue, 6 Mar 2001 15:15:08 -0600

On 6 Mar 2001, at 15:18, Bruce Stallsmith wrote:

> Martin, you discovered a tough piece of chemistry--hardness and TDS are
> different but related concepts. TDS is purely a measure of conductivity,
> with a generalized interpretation of what causes the conductivity. Hardness
> is caused by a short list of cations. I own the Hanna TDS meter which is a
> great bargain, and last week I finally got the pHep 2 pH pen, with temp.
> compensation and an accuracy of +/- 0.1 pH. It's a nice piece of equipment
> for $50.

My next purchase will be the pHep3, unless I win my bid on Ebay
(do a keyword search for LaMotte). I missed by a couple of $$ a
LaMotte colorimeter with 13 test kits.

The calibration solutions for the Hanna instruments are rather
expensive, nicht war? I don't have the stuff to make my own TDS
reference solution, so I don't really know how accurate my meter is.

> I really liked the Strong River when we visited last August, a more relaxed,
> longer visit would I'm sure yield interesting fishes (hopefully with no one
> drowning their car alarm control!).

Right now it's uncollectable - by that I mean HIGH. It will settle
down in the hot months, which is when I've had my best luck.


Jackson, MS
Whenever I see an old lady slip and fall on a wet sidewalk,
my first instinct is to laugh. But then I think, what if
I was an ant, and she fell on me. Then it wouldn't seem
quite so funny.

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