@Donaldj Thank You for working with me on this issue.
So let me give you more data so we can figure this out.
8-15 AM PH-5.8 PPM 1180
Changed Water 2 gallons DI
8-15 PM PH-5.9 PPM 688
8-16 AM PH-5.8 Adjusted PPM 808
Added 1 gallon water with 10ml Bloom nutes 0-10-10
8-16 pm PH-5.9 Ajusted PPM 647
8-17 AM PH-5.8 Adjusted PPM 738
Drained water and replaced with 500 PPM water. I was trying to determine at what level the uptake of water and nutes would be equal.
8-17 PM PH-5.7 PPM 500
8-18 AM 5.8 600
PM 5.8 770 Water level was low so I added 1 gal 5ml bloom nutes 0-10-10 and 1ml cal/mag.
PM 5,8 580
8-19 AM PH 6.1 adjusted to 5.8 PPM 670
I will be needing to add 1 gallon of water at PM checks tonight
PH pen was calibrated yesterday I have to add the the plant is healthy and is not showing any signs of distress. Roots look good and there is no foul smell. I do not want to under feed them so my goal is to find that sweet spot where the nutes and water are being taken up at the same rate.
The current light distance is 8-9inches. They only stretched 2 to 4 inches during pre-bloom so thats when I moved the light up. There is no heat issue so I can drop the light to 6 inches but that would reduce my footprint slightly.
I guess I would also like to know what is the minimum PPM level I can use during flowering. Of course I want to maximize the nute intake without burning the tips.