This chart shows how different levels of PH, effect a plant's ability to use a given mineral/nutrient.
I got this from 'Castaway', from another forum.....Thank's Frank !
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same." - President Ronald Reagan
so, ........ it looks to me that if your plants want to utilize the nitrogen, iron, zinc, and copper you need to raise the PH to 9 0r 10 ..... am I reading this thing right? My PH was always 8.5, I couldn't bring it down ..... but I was always told that I needed more iron because the leaves were yellowing (amongst many other things )
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just below 7 is best....it's a compromise between what the plants and fish want.
Check out the graph for iron.....below 7, gives the plants more 'access', to what iron is there.....more 'green'...
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same." - President Ronald Reagan