Hey guys, I’m three weeks into flower and some of my leaves have brown spots on the sides/corners, they turn dark and crispy. I have about 6 of them now but it might spread. I can’t tell if it’s nutrition burn or a deficiency. Can you take a look at the pictures and let me know what you see? These …

When she gets this close to harvest. You will see yellowing It’s a sign that she is using her nitrogen not to worry

Ok my TDS meter is here, what does all this mean? What do I do? I tested for some numbers, my tap is 385ppm which I don’t use for my plant or myself. Nestle purified water is at 53ppm Costco one gallon purified water that I water my plant is at 19ppm. Is higher better? Lower? There isn’t a lot o…

And if someone could explain to me why this is important for growing cannabis I would appreciate it.

Those numbers all seem right in line. Most bottles or distilled water should be around that ppm. My well water starts out at 326 ppm. Is your tap water well or city?

Ooh I get it now… that’s how you can tell if your plant is in need of more nutrients. I see…

Yes at least for our purposes :wink:

I see thank you. I’m a bit worried, the yellowing is getting worse… been reading into it as much as I could, most deficiencies/toxicities have very similar symptoms. I think @garrigan62 is correct. I have mg deficiency, I had been feeding her calmag based on a friend’s advice but that hasn’t been w…

My diagnostic skills suck! I’m still working on it lol It would help if you could get a ppm runoff number for the others to see if she’s hungry or not also to see what may be going on in your soil

What do you see in this picture?

Troubleshooting

Missiles December 8, 2019, 7:37am 61

If you use your tap water you will want to let it sit out for about 24 hrs to Aerate off the chlorine that is in it

Also here is a good thread that was done lately to explain ppm’s a little further and the importance

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I’m at a loss … Stress	53	965	August 13, 2022
What are these brown splotches? Stress	31	1778	September 1, 2021
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Plants always turn bad after flowering begins Troubleshooting autoflower	111	444	March 2, 2025
SOIL, PH, PPM, RunOff / please explain 2 me Troubleshooting	61	21218	October 24, 2021
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Nutrient burn, help Flowering flowering	146	2935	March 3, 2018
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What do you see in this picture?

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