That ph seems to be in range to me. Much below 5.5 or above 6.5 there will be lock out. But you’re fine. The spots concern me more than the yellowing.
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Sometimes acting too quickly without a plan can be bad. If you suspect a soil issue you can do a flush. Just slowly run 4or5 gallons of ph neutral water through it. Let it drain well then water it in well with feed water.
Id be reluctant to increase nutrients unless your sure thats it!
Id start with the flush and see how it reacts.
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I add silica late in veg every 3rd watering to strengthen stems. I add cal/mag every other watering mid way into veg. I add dynomyco to the soil to help with the micro biota symbiosis. Also add a little liquid myco every so often to keep it strong.
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That’s a bit low for soil, it would be perfect in Promix and soilless. I would ph my water to 6.8 or 6.9 for two waterings and check it again. Soil changes slower than other mediums, so don’t make huge changes at a time. At worst, you could do a flush to completely reset the soil, but I feel you can correct this without flushing, which should be the last resort in soil.
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too high.
IMO, 6.2-6.4 my target.
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I always ph my water to 6.8 with every watering. What else can I do?
My soil (FFOF mostly) always reads above (or below) target.
Regular measuring with Calibrated Apera’s fixed half my problems (bad pens). Smoking in lung room contributes to my other problems (memory requires re-boot often).
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I obviously have a problem and am so dag confused about what to do…
Do you have the means to measure ppm?
Relax, Forum Friends will work with you.
Soil changes during your grow, so we often chase the numbers.
Learning how to SWAG helps, sometimes.
Important lessons can be learned and shared (Forum Friends are great contributors).
Little things like fresh or clean batteries in clean, calibrated PH/PPM pens.
Ouch, it cost $$ for the full meal deal, super-sized.
Apera 20 with Apera 60EZ (two device confirmation).
Cleaning/storage/calibration chemicals.
The cheap pens worked until they did not.
They never calibrated (unlike the Aperas).
Once they went bad my grow was doomed.
Growing in the 80’s I never had or knew about this stuff.
I got lucky once and duplicated the pattern (blindly) for two years.
Once, I had an ounce inventory of personally grown Afghan killer smoke.
Learning now, new stuff, thanks to forum friends and sharing.
Good growing to you.
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No, I don’t but could order a meter from Amazon. Is there one that is recommended that is not super expensive?
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@Karen those cheap meters are JUNK!!! Amazon has much better , , give me two minutes, I’ll post a link for you, I just bought a backup last week.
7 in 1 PH Meter Gomass 0.01 High Accuracy ph Tester Digital for Water TDS/EC/Salinity/Temp/ORP/S. G/PH Pen Tester Drinking Water, Hydroponics, Plants, 7 in 1 PH Meter Gomass 0.01 High Accuracy ph Tester Digital for Water TDS/EC/Salinity/Temp/ORP/S. G/PH Pen Tester Drinking Water, Hydroponics, Plants, Aquarium and Pool: Amazon.com: Industrial & Scientific
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And order some 1413 calibration fluid. Let me know when it comes and I’ll walk you through calibration.
Done. Everything will be here Saturday. Thank you for your help.
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Ive used those for a few years with no issues as long as you calibrate them. Of course i only use them every once in a blue moon, but they work.
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Awesome, I’ll check in on you and we will see where we’re at and what we need to do to get where we wanna be! And your welcome.
The nutes thing and theyre getting attacked and getting infected 'cuz cells are weak like they do when low calcium, for big outdoor plants that 5gal pot is tiny I wouldnt be surprised if just hungry and pH that low should also suggest phos and mag decicency but I see none brown margins or intervening clorosis. Anyyway I’m with them guys that said just adjust it, dont stress about it
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