If you tell us more about the tank such as, size, amount of light, are you dosing co2, then we can help you more. Do you have a digital scale? It makes mixing this much easier.
My tank is a 10 gallon - 12" high, I guess. I have an inch of MGOCPM and an inch of sand. Lighting is two 10W CFL bulbs mounted in aluminum dome clamp-on fixtures elevated about 10" from substrate + 6-8". Fluval U2 internal filter. Sorry, haven't topped off water.
I am not dosing CO2. I have a digital food scale. I have dosed on occasion K2SO4 for a pinhole Potassium deficiency, but have never dosed NO3 or PO4. I dose Flourish Comprehensive at 1/2 of the max and use Root Tabs. I also use Seachem Equilibrium to bring my soft tap up to 7 dGH. pH is 7.6. NO3 is below 10 ppm.
Animals: 6 Pristella Tetras, MTS, Bladder snails
Plants: 1 small Sword unidentified, some small crypts, a bit of Java Moss, possibly Hornwort, and 10 stem plants (Sunset Hygro?) not sure what they are (ID requested on all
Have been running with MGOCPM 2-3 months Plants are growing, no algae. Tank started on 4/18/12 Planted with inert substrate. have had the Pristellas since almost the beginning and they are enjoying themselves.