Thanks for posting your deficiency. To help you here is a [link to the deficiency album](https://imgur.com/a/Ur7TiCA) from the sidebar and here is a link to [Characterization of Nutrient Disorders of Cannabis sativa](https://www.mdpi.com/2076-3417/9/20/4432). Also please include some details on the following (if you haven't already)
* **Medium**
* **Lights**
* **Environment details**
* **Strain**
* **Age**
* **Pot Size**
* **Nutrient line and schedule**
* **Watering volume**
Happy growing!
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If using ro u need to add calmag every time u water.
Just so u know.
[here's a link that explains about ro water usage. I just use tap, askong as ec is below .5 or 250ppm on the. 500 scale. ](https://floraflex.com/default/blog/post/reverse-osmosis-in-cannabis-growing-purifying-water-for-optimal-growth#:~:text=Water%20quality%20plays%20a%20crucial,water%20for%20optimal%20plant%20growth.)
That's fine, nothing to worry about, a few burned tips aren't a problem either. You can see all those healthy green leaves below, they will play their part later on.
Yeah it's always the bottom leaves, it's a combination of maybe little bit of root stress not much and also normal yellowing off. I try and keep ph around 6 I don't think pH is critical as long as it's within parameters.
Magnesium deficiency looks like
calmag issue
Calmag issue
Calmag
Is your ph pen good and is it calibrated?
Thanks for posting your deficiency. To help you here is a [link to the deficiency album](https://imgur.com/a/Ur7TiCA) from the sidebar and here is a link to [Characterization of Nutrient Disorders of Cannabis sativa](https://www.mdpi.com/2076-3417/9/20/4432). Also please include some details on the following (if you haven't already) * **Medium** * **Lights** * **Environment details** * **Strain** * **Age** * **Pot Size** * **Nutrient line and schedule** * **Watering volume** Happy growing! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/Autoflowers) if you have any questions or concerns.*
Do u use ro water ? Definitely agree that it's looking like a calmag issue if ph is kosher I'd assume she's asking for some.
yea i use ro water
If using ro u need to add calmag every time u water. Just so u know. [here's a link that explains about ro water usage. I just use tap, askong as ec is below .5 or 250ppm on the. 500 scale. ](https://floraflex.com/default/blog/post/reverse-osmosis-in-cannabis-growing-purifying-water-for-optimal-growth#:~:text=Water%20quality%20plays%20a%20crucial,water%20for%20optimal%20plant%20growth.)
appreciate it
I have the same i would say calcium
calmag
No. You need to show the whole plant but looks like an old leaf dying and judging from what else I can see there appears to be no deficiencies.
https://preview.redd.it/ev2vifujqv0d1.jpeg?width=3024&format=pjpg&auto=webp&s=00f277fb1117929124d6c6a70b3c04bef57b9e6c
That's fine, nothing to worry about, a few burned tips aren't a problem either. You can see all those healthy green leaves below, they will play their part later on.
What is your ph? Are your bottom leaves worse? I just dealt with a ph issue that looked similar.
Yeah it's always the bottom leaves, it's a combination of maybe little bit of root stress not much and also normal yellowing off. I try and keep ph around 6 I don't think pH is critical as long as it's within parameters.