Why one plant has yellow leaves

2

2feather18

Well-Known Member
I got several plants growing but only one of them starting to get yellow leaves anybody tell me what might be the problem
 

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Merkn4aSquirtn said:
Ph on point? Checked that plants runoff lately?
Click to expand...
Yep I checked my pH water and pH nutrient what's a pH tester all OnPoint I bought a soil meter but I don't think it was reading correct.. all the reason why I say that is because it was a cheap one for $10 and I put it in all plants and it kept reading 7.5
 
Merkn4aSquirtn said:
Don’t trust soil meters. You should get a ph pen and a ppm/ec pen too. Add your nutes check ph & ec. (Water your plants and collect the water that comes out the bottom of what you’re growing in) <—that’s runoff
Click to expand...
Somebody told me that I can take a soil sample mix it in water and then test it like that but thank you for the runoff info.. I will do that next
 
spek9 said:
Don't worry about runoff right now. Get a proper pH test pen, and set your pH of the stuff going in. What medium are you growing in?
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Smart Fabrics 3 5 and 7 gallon I have toget a proper pH test pen those are expensive I'm going to have to save up for that yeah I only test my pH levels put my water meter
 
2feather18 said:
Smart Fabrics 3 5 and 7 gallon I have toget a proper pH test pen those are expensive I'm going to have to save up for that yeah I only test my pH levels put my water meter
Click to expand...

I have one exactly like the following. I bought it when I first started growing indoors, eight years ago. I check calibration every few weeks to a month, and I have never once had to re-calibrate it. I read 4.1 on the 4.0 pH control liquid, and exactly 7.0 on the 7.0 control. Only drawback I've found is that it can take 15-20 seconds to get a precise, stable reading.

I paid under $12 for it.

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spek9 said:
I have one exactly like the following. I bought it when I first started growing indoors, eight years ago. I check calibration every few weeks to a month, and I have never once had to re-calibrate it. I read 4.1 on the 4.0 pH control liquid, and exactly 7.0 on the 7.0 control. Only drawback I've found is that it can take 15-20 seconds to get a precise, stable reading.

I paid under $12 for it.

Amazon.com: AutumnFall New Digital PH Meter Tester Pocket Portable Pool Water Aquarium Hydroponic Wine (Yellow): Beauty

Buy AutumnFall New Digital PH Meter Tester Pocket Portable Pool Water Aquarium Hydroponic Wine (Yellow) on Amazon.com ✓ FREE SHIPPING on qualified orders
www.amazon.com
Click to expand...
So the run off I just catch some of that water from the pot and then test that with my meter
 
2feather18 said:
Hey what do you mean you check collaboration every month how do you do that am I missing something on our PH meters right I have like the same one as you
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There is calabration solution that will help you make sure your PH pen is reading right. I used to mess with the cheap pens. Reading were very close to my Apera PH60.
 
Merkn4aSquirtn said:
Don’t trust soil meters. You should get a ph pen and a ppm/ec pen too. Add your nutes check ph & ec. (Water your plants and collect the water that comes out the bottom of what you’re growing in) <—that’s runoff
Click to expand...
Hey I just got a TDS meter so what's the idea levels I should have. I tested my tap water and it's 149
 
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