Need help please - Leaves starting to turn yellow

NewDay

New Member
Hi guy's/girl's if any haha joke's Newbie here..
Just wondering if anyone can help me out..
The leaves on my clone's (sariva) are starting to turn yellow look's like magnesium deficiency but iam not shore and could be wrong that's why I'm here asking for your kind help..
My grow space/equipment is a 1mx1mx2m tall tent
ViparSpectra 900w led with Veg/Bloom switches..
ventilation
fan & heater
5gal fabric pot's with coco/pearlite
The ventilation and heater are connected to a thermostat controler...
As NUTRIENTS I'M USING
Canna vega a/b
bloom cal/mag
Ph Up/Down...
And have Cotton Candy for flower stage.. I'm in Veg stage 18off/6on of light and am in week 3--5days and was thinking OF turning to Flower stage on week 4 of veg...
Iv uploaded some pic's and hopefully something can help out..
I water wo it flows out the bottom of the pot's to a wast drainage setup..
Thank's heap's guy's-girl's regards ToxicVirus88...
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Sorry if I missed it but what's your ph and ppm at?
Hi the Germinator thanks for reply..
No i forgot temp humidity ph and ppm i dont know sorry as i dont have a ppm reader but do go a couple mil less then what nutrients say on bottle witch say 40ml A 40ml B to 10ltrs of water..
Say i get 20ltrs of water put 70ml A in mix then 70ml B mix..and add 5ml of cal mag as the canna has it all then mix then dilute ph with water and add to adjust ph to 6.2..
Temp 25to27deg normally but goes up to 31 on a hot day as in shed..but last grow went good..using same equipment same place..
Humidity is 45 to 64
Ph i make as 6.2 and and soil says with digital ph reader 5.5 to 6.0
 
Hi the Germinator thanks for reply..
No i forgot temp humidity ph and ppm i dont know sorry as i dont have a ppm reader but do go a couple mil less then what nutrients say on bottle witch say 40ml A 40ml B to 10ltrs of water..
Say i get 20ltrs of water put 70ml A in mix then 70ml B mix..and add 5ml of cal mag as the canna has it all then mix then dilute ph with water and add to adjust ph to 6.2..
Temp 25to27deg normally but goes up to 31 on a hot day as in shed..but last grow went good..using same equipment same place..
Humidity is 45 to 64
Ph i make as 6.2 and and soil says with digital ph reader 5.5 to 6.0
Also last grow i did have a ppm reader and used all the time plant growth was nice so iv stucked to the same method of mixing my nutrients but before I was not using cal/mag on my last grow..
Cheers
 
Sorry i just noticed light hrs written wrong..
I ment 18on/6off..
Am also thinking it could be nitrogen deficiency..
 
My progress..flushed with cal/mag- 6.2ph water 2days ago checked the soils ph today and it was 5ph so gave them some slow release fertilizer ontop of soul with 20ml canna A- 20ml Canna b- in 30ltrs of 7.2ph water about 3ltrs of water each.. Hopefully ph climbs up and they start to look better..
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First. I apologize for the lack of participation from our community. I've noticed they're clicks here. I don't get much activity in my journal either.
That being said. I don't know if I'd trust that meter. I'd do a slurry test. Google it.
I hope more will take interest. They look good.
 
I'm curious also!!

How's your grow going germ?

Mines growing great Thank You. Will update tomorrow. Stop by sometime.
 
https://www.researchgate.net/profil...707118083@1478686133457/download/Measuring_pH
I took .pdf off because links aren't allowed. Just add .pdf to the end.
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Hi the Germinator,,
Haha all good mate so sorry on my late reply as i deleted my first account as no reply for awhile so yer ...
But after your help man i think ya done it for me ya legend .
I done a slurry test as the pdf said and the
first test was 7.9ph second test was 8.0ph
So flushed plant with half strength nutrients and cal/mag at 7.0ph as i added that fertilizer to the top of coco to get them healthier/greener then next water i done full nutrients/cal/mag strength at 6.8ph and flushed again and waited a week and changed over to 12/12 light cycle and ever since that I've stuck with
cal/mag and cotton candy as it has good vitamins in it and is for the first 2weeks of flower mode and are going awesome..
So thank's heap's for your help man i really appreciate it as i reckon it was ph . as that was way to high and have never heard of a slurry test so learnt something new cheers mate legend..
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Hi guy's just a little update on how they are gowing with a couple of pic's ...
This is my second grow im no green thumb but am doing ok i think hopefully haha..
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Mines growing great Thank You. Will update tomorrow. Stop by sometime.
Hi The Germinator
Spewing i can't upload pic's man from mobile app as these girl's are going so good now..
Alittle tall from longer veg because of the troubles i had but i can not complain . they look heap's better..
cheers as it prob wouldn't of happened if you or anyone else didn't help me out bloody legend mate ...
 
Hi The Germinator
Spewing i can't upload pic's man from mobile app as these girl's are going so good now..
Alittle tall from longer veg because of the troubles i had but i can not complain . they look heap's better..
cheers as it prob wouldn't of happened if you or anyone else didn't help me out bloody legend mate ...

Download 420 app. Then access 420 mag from there. Works great.
 
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