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[APD] Hagen test kits? Flying blind
On Fri, 23 Jan 2004 01:40:52 -0600, Candy M.
<cry_little_sister at hotmail_com> wrote:
I would like to know if anyone is aware of any reason I should not order
the following test kits: Hagen
NUTRAFIN TEST KIT PH LOW RANGE (6.0-7.6)
NUTRAFIN TEST KIT PHOSPHATE FRESHWATER/SALTWATER
NUTRAFIN TEST KIT NITRATE FRESHWATER/SALTWATER
NUTRAFIN TEST KIT IRON FRESHWATER/SALTWATER
NUTRAFIN TEST KIT GH/KH FRESHWATER/SALTWATER
NUTRAFIN TEST KIT CALCIUM FRESHWATER/SALTWATER
Are they accurate enough?
I generally like the Hagen tests. At your hardness you _might_ find you
need the high-range pH kit (I have soft water, ~60 ppm KH and my pH is
about 7.4-7.6 ish), so if you had a pH reading in your water report you
might want to check it. Obviously if you're adding CO2 to drop the pH, you
will probably need the low range. The iron test tests for both chelated
and non-chelated iron separately (which is good), and I have heard the
Nitrate test (although still pretty bad) is better than some others. It
doesn't really measure it well though, it sort of measures at 5ml, 10ml,
20ml, 50ml and 110ml, with very little difference in colour between these
(you can measure if you have <5ml, a bit more than 5ml or lots, but that's
about it). The calcium test, like the KH and GH tests, is a titration test
(drop by drop), but as it measures 20mg/l per drop it's not designed for
freshwater, unless (like you say) you have quite hard water.
Hagen sell a Master Test Kit with all of these plus a few more which I got
second-hand from someone (if anybody in the UK knows how to get the
refills individually I'd be grateful).
As for the usefulness of the tests, I can't think why you would *need* to
know the Ca/Mg ratio. The nitrate test would possibly be one to get a
better test kit if possible. I've heard that most Iron test kits don't
read low enough to read the commonly found levels in the aquarium. This
one reads 0, 0.1, 0.25, 0.5 and 1.0, so considering the estimative index's
advice of >0.5mg/l it should be alright. The colours on that test (just
looking at the instructions) don't seem to be too bad either.
I saw the Hagen tests being used in my LFS last time I was there, if that
means anything. I live in the UK, though, and I'm not sure if any better
tests are easily available over here. (Over here I can't find compact
fluorescent ballasts or half the other things you can get over there quite
easily. I'm making the assumption you live in the U.S.A. from your -6 hour
thefish at theabyssalplain_freeserve.co.uk
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