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I had a similar problem, and after thinking it was a calcium deficiency, and feeding cal mag with no help, I’m pretty sure it was low ph because I was ph’ing my water to 6.0 in living soil, and I think I was locking out nutrients uptake, including calcium. I flushed mine with my well water, which is around 7.5 ph, and it has improved. No more ph’ing water for me. Mine is day 16 from first buds, and day 35 from flipping.
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The following info will help us help you.
A support ticket will help us help you. Can you please fill out a support ticket? Please include what type of water you are using (RO, distilled, tap.)
COPY/PASTE the below list into your forum post.
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non-applicable)
• What strain, Seed bank, or bag seed
• Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
Soil brand and type
• Vessels: Pots, Grow beds, Buckets, Troths
• PH of Water, Solution, runoff (if Applicable)
• PPM/TDS or EC of nutrient solution if applicable
• Indoor or Outdoor
• Light system
• Temps; Day, Night
• Humidity; Day, Night
• Ventilation system; Yes, No, Size
• AC, Humidifier, De-humidifier,
• Co2; Yes, No
If growing Hydro some additional questions:
-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution
Always try to upload a clear picture of any issues you may have to allow the community to assist you. Pictures taken under natural or white lighting are by far the best.
Add anything else you feel would help us give you a most informed answer should be included. Feel free to elaborate, but short and to the point questions and facts will help us help you in a more efficient manner.
1 Like
At the first sign of any deficiency I check pH. If you’re using good nutes according to their feeding schedule pH is often the issue. I had a high pH cause zkittles leaves to look like that bottom pic. They went completely dry and crunchy. I corrected the pH and trimmed the crunchy leaves as close to the buds as I could. Turned out fine. With the info @MidwestGuy requested someone will be able to tell you exactly what’s going on. Good luck.
1 Like
How does this happen in flower? Bloom nutes are ph downers.
I’m sure it started before that. I used a vivosun pH meter and starting water 7.8-7.9 from the start of the grow. Fed dead on according to that meter. IDK when it got out of calibration. But, I knew something was bad off so I ordered a pH 20. Checked the runoff as soon as I got my Apera and it was high 7s. I flushed down the pH, kept feeding as I was and the problem stopped spreading. I’d have to look in my notebook to see what day I was on when I got the meter.
3 Likes
What combats the ph from going down when using bloom nutes in flower?