Just fed my girls two days ago and the run off was between 1300-1500 ppm. I was going to do 100% distilled water for their next watering but some of the leaves are showing nutrient deficiencies (calcium)...should I just do 100% distilled water to lower the ppms or should I add CalMag to the water for the next feeding?
FYI I am in week 4 of flowering.
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Pics would help also what’s your runoff ph
I’ll take pics tonight. pH is 5.9
What light you using and what’s the distance?
And what are you using to grow in?
Soil. Fox Farm nutrients...their complete line up.
How old is the plant? What deficiencies is it showing?
Week 4 - 5 in flowering
I would say pH imbalance in two leaves. Calcium and possible PK deficiencies as well. I’ll take pics tonight when it’s “daytime”.
Runoff was 1300-1500 and pH 5.7-5.9.
What light do you use and how close is it?
I wouldn’t think it’s pk maybe cal-mag but it also be the start of light burn
iPower 600 Watt HPS MH and 19 in from the highest point and 23 in on the other areas
Switching to the MARS HYDRO TS 3000W LED when it comes on Tuesday.
If they start to curl up in the next day or two I’d move your light up
Thanks! Part of me wants to wait just to confirm that was the issue. Light burn is reversible right?
The damaged leaves will not get better but they wouldn’t get worse
You're pH of 5.7-5.9 is a bit low for growing in soil. I persoanlly like to be in the 6.0-7.0 range with 6.5 being the sweet spot. That may be why you're seeing deficiencies. Your PPM range of 1300-1500 is good for the stage of growth you're in. Do you feel CalMag every watering? If so, what dose? Often times the amount of calcium/magnesium isn't enough in 2 and 3-part nutrient lineups so a CalMag supplement on top of them is needed. The pictures you took make the plant look yellow since you're using an HPS light; we can't see the true color of the leaves. If you can take pictures in normal lighting then we may be able to give further input.
I add 5 ml per gallon each time I water especially since I use distilled water. I’ll take pics in normal light today.
I am watering tonight. Would you go water with CalMag at about 7.2-7.5 pH and see what the runoff is afterwards? Or would you also add PK nutrients as well?
@Hart 4 Green I'd do 6.7-6.8 pH and hope that brings the runoff above 6. If there are P and K deficiencies as well and the plants were in week 3-6 of flowering then I would do a PK booster
@Mr. Grow It
BW 6.4 pH 1781 ppm
SOG 6.5 pH 1391 ppm
BB 6.5 pH 1156 ppm
Need help. Watered my plants Saturday night and the pH and ppms are listed above, but leaves are still turning... HELP!