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RE: [APD] Iron levels, UGH, Anemic in Boston ;-)



 Dave,

The iron test kits you find are not only hard to read...but not very
accurate either.  I've seen reports of people triple dosing a bucket of
water, and still the test reads 0.00ppm of Iron...yet they have thread algae
in their tank.

A LaMotte kit might be able to read iron, but as I haven't used it I can't
vouche for it.

--
Gregg
gstearns at neb_rr.com

-----Original Message-----
From: aquatic-plants-bounces+gstearns=neb_rr.com at actwin.com
[mailto:aquatic-plants-bounces+gstearns=neb_rr.com at actwin.com] On Behalf Of
David Terrell
Sent: Saturday, February 21, 2004 8:25 PM
To: aquatic plants digest
Subject: [plant_list] [APD] Iron levels, UGH, Anemic in Boston ;-)

I've been trying to follow the Sears/Colin paper on how to dose these
fertilizers I've had for a few months.  I bought dry ferts from Greg and
made a mix just as the directions say, but I didn't notice much change, and
I never noticed my iron levels increase at all.  I have a red sea iron test
kit (as I've complained before), the first step on the test chart is 0.1ppm
and is slightly more grey then light blue (which is difficult for me to
see).

Anyway, I've been dosing just a mix of plantex in water (100ml instead of
300ml mix) and I just did a water change and calculated what amount of the
mix I would need to make the target water 0.1ppm.  I've never seen this test
change colors, am I doing something wrong?  The tank is pretty heavily
planted, I put 2tsp per day of this mix, and added 2tsp to the changed
water.  I did a test after about an hour and the iron is undetectable, it
would seem just after adding iron to the tank it should see SOMETHING!  I
want to make sure I can get a maintained level of 0.1ppm Iron before I start
dosing Potassium Sulfate to the tank, and then Potassium Nitrate.  I'm
trying to do this by the book and I can't seem to even get past the first
step.

Help :-/

-Dave T.
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