Leaves curling down

M

mb5

Member
Problem with a few of my plants, never had this issue before using the same water so ph isint an issue, I have also grown this strain before. Humidity is at 40%, 25c temp. There is adequate air flow and the lights are not too close to the plants. Feeding once a week with Remo nutrients at 75% recommended feed. Cal mag was given to the plants that were looking worst off earlier today. 046D8A30-8C77-4D58-8DBD-641AC3FD5169.jpeg
 
Dontjudgeme

Dontjudgeme

Well-Known Member
Can you explain exactly what you feed? I know you said remo. But tap/RO/distilled? Calmag? And humidity seems a bit low for veg. You are in veg right? And are these autos or photos?
 
M

mb5

Member
Dontjudgeme said:
Can you explain exactly what you feed? I know you said remo. But tap/RO/distilled? Calmag? And humidity seems a bit low for veg. You are in veg right? And are these autos or photos?
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They’re photos and in veg. I’m using tap water, it’s the same tap water I have always used on multiple grows and have tested the ph a while ago and it was acceptable.

I feed 10ml of grow and 10ml of micro, watering until runoff. Overwatering is not the issue I believe. I had a little cal mag from Remo left over from a previous grow and gave it to the 2 worst off plants this morning and just took thoes pictures about 8hours after the calmag feed
 
M

mb5

Member
FlowerPower001 said:
May not be relevant. If you are feeding without pHing your water (after you've added the nutes) then you are running your pH down each time you feed. It really looks like a pH issue to me.
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I am not adjusting ph after adding nutes, although after several grows I have not had this issue, I guess it’s worth a try. Also worth noting I have grown this strain before
Dontjudgeme said:
What medium are you growing in?
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Sunshine promix bx
 
M

mb5

Member
Also would like to add only half the plants are having this issue, 2 being severe, the others are growing fine
 
Dontjudgeme

Dontjudgeme

Well-Known Member
Sometimes plants can behave differently even though it’s the same strain. I understand that 2 are fine, but the others just need a little more TLC. Definitely ph after adding Nutes. There’s no way of knowing what the ph is if you don’t. I know you didn’t do it before, maybe you just got lucky and the plants didn’t fight you over it.
 
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FlowerPower001

Member
mb5 said:
In fabric pots, drainage is fine


Going to get some ph up, thanks for the quick responses everyone, very much appreciated
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When I have a pH problem that low I will flush with tap water pHed to 8.0 to 8.5 until the runoff gets back to 6.3 to 6.8. Use tap water because it is impossible to pH RO or distilled properly, as there is nothing for the ions to attach to. It will take several gallons (as many as 6 or 8 gallons) for you to get it there. Just keep measuring your runoff until you are happy. It could take fewer, but I doubt it will take more.

When you get the pH where you want it you will have flushed (depleted) your soil of many nutes and your PPM will be low. You won't be able to get soil that is saturated to absorb nutes, so it it will have to continue to go underfed for a few more days until you can water again. Get your next feeding (the water going in) to 1,500 PPM or so and saturate the soil again. Don't forget to pH your water for the next feeding(s) after you've added the nutes.

Good luck. She should recover fine.
 
M

mb5

Member
Quick update, only 1 plant is still not 100% 24 hours after a heavy feed of calmag, going to have to pick some up, and will also start monitoring the ph with some of the advice I received here, thanks again for the help guys!
 
M

mb5

Member
calmag came in the mail few days ago(grow stores closed.. thanks 'ronavirus) plants are back to health. thank you all for the help and support. ph was 6.8 before adding nutes, once nutrients were added, the ph would drop to 6.0, if anyone was curious as that question was asked.
 
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