Need help with logic, timing of addition of NO3 additives vs. measurement
of NO3 levels after addition. Is addition most beneficial in the AM? I want
to attain 5 ppm (I'm up from zero to 0.2ppm). At what time, relative to nitrate
addition, should I be doing the measurement? Directly after addition? or some
period of time later, say 12 hrs? 24 hrs?

The consensus would be to add macronutrients twice a week, but build up slowly
so avoiding fish shock. Starting at under 1/2 dosage one M. praecox hit the
dirt (gravel). Should I use daily additions to build up? (Light's dawning - I
had to tear down, clean and replant the tanks maybe a month ago, perhaps I over
cleaned the flourite? and hence the value of my N additions seem zilch until I
build up some mulm?)

Advice has it that extra fish food = any additional PO4 needs. My PO4 is close
to my goal for NO3 at 5 ppm. What ratio of NO3/PO4 are the fish + feed
providing? (Assume fish load and feeding are correct) What levels are they
providing? Any rule of thumb?

Dumb question 6 or 15 - Seachem's Nitrogen. They state their product is
some form of ammonia??? Would residual nitrogen from that source not be picked
up by NO3 testing (La Motte kit)? I get zero on NH4 measurements, as well.
Frustrated with continued zero NO3 readings I switched to KNO3 and got small
but measurable NO3.

Any help on these questions would be appreciated. Thanks in advance, Sharon.