Quote Originally Posted by seldomBLUE
I never knew what good a PPM meter would do until i got one and used it just for shits and grins. I'm curious as to the ppm ranges necessary, or, are most beneficial in a soil/hydro system. I get my water from one of those windmill water stations and it test at 11 ppm. I mixed my amendents per gal. just to get a reading. CalMag alone, at 5ml/gal gives 240ppm, 7.5ml/gal - 340 ppm, 10ml/gal - 450ppm. Which level is best for early/late veg, early/late flw? Also the fets. FloroNova gives ppm near the listed ranges but my plants keep showing deficiencies and have wild ph fluctuations when i start at 6.2pH. I have a white widow (soil) that's 5 wks into flw and looks the same as it did at 3 wks. A white rino (soil) that's 6-1/2 wks and full of rusty spots. The twisted thing is that both plants get the same fert mix. What's the best ppm per amendment and at what stage for a soil mix and hydro? And what about adding hydrogen poroxide to the solution? Somewhere i read that the extra oxygen atom helped in a soil mix. Dose it do any good in hydro or does it do any good at all?
Actually, no where in this whole statement does it specify that you have hydro and soil going at the same time. You do specify soil but only ask about hydro......

I thought you were only growing soil and were trying to attach hydro to it somehow....

You should really try not to be a jerk on your first response to anyone because on the net, you have to remember, the author and reader could be thinking two very different things depending on how well the author spells out the situation.....

tinytoon has a vast amount of knowledge with hydro, if anything, you want his responses. You should also read his sig, a lot of truth there.... (whispering) I think I should also mention that he is a little edgy right now due to the recent visit from LEO ( in case you haven't been paying attention). I'd be too.

Anyways, to answer your question, ppm's should be thought of as a guideline of nutrient strength. You want to start off light and as the plant grows so should the ppm's in the water. These ppm's should be divided by N-P-K, micro nutes, vitamins, and if you want, supplements too. Example: clones should be in water with a ppm range of 250. After they root and you put them in their medium to veg, you can raise the ppm's to 3-400. Add 100 ppm's worth of recipe each week to build up the plants tolerance. The plants will let you know when it is too much once you give them more than what they can handle.

This goes for soil and hydro, start off light and build tolerance.....

As for hydrogen peroxide, I wouldn't use it but that's just me. If you want more oxygen in your soil, use more perlite. If you want more oxygen in your hydro, get yourself more airstones and another air pump....... Just my 2 cents....

Hope this helps, if you have more questions, ask....

CGI::::::