Originally Posted by bigfoot
I like the PPS system which is to measure the dry ferts.and mix them in 500ml of water. Then i dose useing the syringe that comes with the seachem ferts..
This works well and is more accurate(see Trace elements comment).
Questuion is, do you need that accuracy when your test kits are not that accurate to begin with?
Wonder how I know these things and know the accuracy ranges of test kits?
I considered that issue abotu 10 years ago.
PMDD suggested adding KNO3/MgSO4 etc into 500mls of water a long time ago. I did not think it was useful then, nor now.
Adding a level 1/4 teaspoon directly to the tank causes no issues and is easy.
I hate liquids laying around, dribbling all over.
You also need to convert the ppm ranges of the dry ferts you add to the mls you dose.
That added step for the chem challenged can cause issues.
PPS is what folks did prior to EI dosing methods. Everyone tested and added what was removed by the plants. we did not call it that, we called it monitoring the tank's parameters. See ww.sfbaaps.com
We did that a long time ago and established many of the parameters folks now use.
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