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Re: PMDD Trouble
Scott writes:
> My first attempt with PMDD has been less than a success. After using 1.0 ml
> daily for about 2 weeks I purchased a Lamotte Nitrate test kit (has fresh
> reagents) and found that Nitrate Nitrogen was barely detectable (less than
> 0.25 ppm NO3-N). So a began adding larger amounts of PMDD to try to get
the
> NO3-N up to about 1.0 ppm (or 4.4 ppm NO3). Well, I did increase the
> Nitrate but never even reached 0.5 NO3-N. I stopped adding any more PMDD
> because the fish became obviously stressed, stopped eating and swimming and
> the most sensitive fish (baby Kribs) began floating upside down.<snip>>
Well, for starters, if you have a fairly heavily planted tank, the nitrates
are going to be absorbed by the plants. Nitrogen is a MACRO-nutrient, which
means they use bunches of it. My planted tank remains at 0ppm nitrate,
because the fish waste is absorbed as ammonia or nitrite. That's the biggest
reason I started into the plant thing, was to keep nitrates down. Try
tracking a micronutrient like iron.
Bob DIxon