Green Light Stump Remover
 

Anyone has a definite answer to its content? According to previous
postings it is suppose to be pure KNO3, but when I tested a solution of
it with the Aqua. Pharm. nitrate test, I got a reading of 0. So, is
the problem with the Stump Remover or the Nitrate Test?

BTW, the Nitrate Test did have a non-zero reading with some lawn
fertilizer that I left standing with aeration. Also, the Nitrate test
registered 0 with a solution of Flourish Nitrogen. This doesn't make
sense since the Flourish Nitrogen is suppose to contain nitrate.

A related question. Know of a good nitrate test kit?

hagen or tetra. Hagen is probably a little better, but it takes a bit more
practice to get it right. Tetra should be more than good enough.


--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

In article . com,
Watercress wrote:
Anyone has a definite answer to its content? According to previous
postings it is suppose to be pure KNO3, but when I tested a solution of
it with the Aqua. Pharm. nitrate test, I got a reading of 0. So, is
the problem with the Stump Remover or the Nitrate Test?

BTW, the Nitrate Test did have a non-zero reading with some lawn
fertilizer that I left standing with aeration. Also, the Nitrate test
registered 0 with a solution of Flourish Nitrogen. This doesn't make
sense since the Flourish Nitrogen is suppose to contain nitrate.

A related question. Know of a good nitrate test kit?

LaMotte. Or a digital meter. The hobby kits are like windows, they
just don't work properly.

The green light stuff is pure kn03. You can verify this by asking
for the MSDS sheets where you buy it.


--
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1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org

In article ,
Margolis wrote:
hagen or tetra. Hagen is probably a little better, but it takes a bit more
practice to get it right.

Hahahaha, good one. These things aren't even remotely
accurate. They're thrown off by nitrite (the instrucstions
say so but don't say high or lo) and the color charts
are a function of water hardness, I have to use the something
in between the salt and fresh chart for my water and I've seen
them read zero with a calibrated kn03 stock solution and I've
seen them read zero when a LaMotte kit reads 220ppm.

The thing seems to work sometimes and if you guess at what
the chart should be they're usefull for determining
"zero", "low" or "high". When they work.

Plus they contain cadmium. Waste of money.


--
Need Mercedes parts ? - http://parts.mbz.org
http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org
633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net
1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org

Richard Sexton wrote:

about Nitrate test kits...

Plus they contain cadmium. Waste of money.



If this causes you concern, you'd better not read the ingredients of
gasoline! You'll have nightmares! And it's exhaust is being spewed
from every car on the road! The humanity!

:)
steve

In article .com,
steve wrote:

Richard Sexton wrote:

about Nitrate test kits...

Plus they contain cadmium. Waste of money.



If this causes you concern, you'd better not read the ingredients of
gasoline! You'll have nightmares! And it's exhaust is being spewed
from every car on the road! The humanity!

I drive a diesel. I realize it's not a whole lot better
but there's not much of a choice 50 mles from the closet
city. There are choices in how you test NO3.


--
Need Mercedes parts ? - http://parts.mbz.org
http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org
633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net
1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org

Sorry, but you need to read the directions then ;op They are more than
accurate enough for what we are dealing with here. There is no need to
spend $100 on a lamotte test when we are not in a laboratory setting. And
there are no digital meters for nitrate.

--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

In article ,
Margolis wrote:
Sorry, but you need to read the directions then ;op They are more than
accurate enough for what we are dealing with here. There is no need to
spend $100 on a lamotte test when we are not in a laboratory setting. And
there are no digital meters for nitrate.

I read the directions seevral times. I've already pointed out the flaws,
but to repeat "tests are affected by nitrite" but they don't say how.

Stock calibrated nitrate solutions do not match either FW or SW chart.

A 200 ppm tank read zero for 24 hours with seevral etsts then read 80ppm
a day later whilke LaMotte said 200 all along. While you may have different
experiences, these are mine. WHen they work they give you a rough idea of
where your nitrates are, modulo error from nitrite which is an unknown.

Many people on APD have digital nitrate meters. Maybe Tom Barr can talk
about his if he pops his head in here.


--
Need Mercedes parts ? - http://parts.mbz.org
http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org
633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net
1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org

Richard Sexton wrote:
In article ,
Margolis wrote:
hagen or tetra. Hagen is probably a little better, but it takes a
bit more
practice to get it right.

Hahahaha, good one. These things aren't even remotely
accurate. They're thrown off by nitrite (the instrucstions
say so but don't say high or lo) and the color charts
are a function of water hardness, I have to use the something
in between the salt and fresh chart for my water and I've seen
them read zero with a calibrated kn03 stock solution and I've
seen them read zero when a LaMotte kit reads 220ppm.


Well I've seen a three legged dog too...

For my requirements, the AP nitrate test kit and the Nutrafin pH kit
are very accurate. When used properly, they reflect the conditions I'd
expect to see with the variables present. For example:

My tap water test for nitrates is 0
The city water report for nitrates is less than 1

When I was cycling a new tank, the first test to show results was for
ammonia.
Within a week or so, the nitrite test showed evidence there.
A short time later, the nitrite test was back to zero and the nitrate
test was positive for 5ppm.

My 55g tank has supplemental CO2

Tap water pH test is 7.4
My initial KH tests were 35ppm
Is it a mear coincedence that the C02 chart calculated amount is
2.4ppm?
As I began to add CO2, the pH steadily dropped to 6.8. I added some
crushed coral to add buffer, and the KH is now at 55ppm. I've since
tripled the CO2 bubble rate and it is now calculated at 26ppm with a
measured pH of 6.6.

When I had a large fish load, the nitrate tests got up to about 20ppm
on a weekly basis. Now that there are less fish, the test does not
show as much. When I added many plants, the nitrate test came up zero
again so I've begun to add KNO3. It seems to be workin' for my hobby
needs, and the plants and fish sure are healty.

steve

You know your remark about nitrite is interesting. In the three
nitrate test solutions I have. The only solution that showed a
positive reading contains nitrite and ammonium. Hmm, coincidence?