New Grow Same Problem!
- Thread starter speed420
- Start date
3rd Monkey
Well-Known Member
Did you buffer your coco?
Doesn't look like it. K is locking out calcium and everytime you feed, the K sticks and the calcium washes out.
Hence, the K tox/Ca def.
Doesn't look like it. K is locking out calcium and everytime you feed, the K sticks and the calcium washes out.
Hence, the K tox/Ca def.
3rd Monkey
Well-Known Member
What is PL that you have mixed with the coco?
Kingrow1
Well-Known Member
Those two plants at the back just say moisture stress to me why they gone all parched at the top.
Now there can be a lot of issues but across the boards watering and ferts are massive so id start there.
I hate to try and diagnose, watch for changes either varying the ferts or waterings.
otherwise probably environment but most should have that reasonably dialled in by now.
Cal/mag, its like a myth to me, if ferts dont instantly solve it it wasnt that
Now there can be a lot of issues but across the boards watering and ferts are massive so id start there.
I hate to try and diagnose, watch for changes either varying the ferts or waterings.
otherwise probably environment but most should have that reasonably dialled in by now.
Cal/mag, its like a myth to me, if ferts dont instantly solve it it wasnt that
Andino
Member
It's look like Cal/mag but also I can apreciate anothers sistoms, so for us to help you better, could you please let us know, how old is it the plant? how often do you irrigate? Ph of the water for irrigate? and if the plant did you get from seeds or cuttings? I think the Ph it's kinda down for that size of the plant. 
speed420
Active Member
My coco is pre buffered and I am using promix PL
The plant is 47 days old from seed. I use autopots to the aqua valve floods to bottom feed. I use 5.8 ph for watering. Plants are all from seed.It's look like Cal/mag but also I can apreciate anothers sistoms, so for us to help you better, could you please let us know, how old is it the plant? how often do you irrigate? Ph of the water for irrigate? and if the plant did you get from seeds or cuttings? I think the Ph it's kinda down for that size of the plant.
coreywebster
Well-Known Member
Get a bottle of calmag and take your pots out of the trays and top water until run off with a good dose.
swazifarmer
Well-Known Member
You are aware your Perlite is slowly releasing K?
Renfro
Well-Known Member
I agree with this ^
swazifarmer
Well-Known Member
Now the slow release is fine and moderate but your adding on top of that which would create a big build up of K eventually. If I’m right you’re last grow would’ve ran into the same issues at roughly the same time period.
speed420
Active Member
Yes thats right around the same time as my last grow i had the same issues. Should I do a good flush with ph water then keep feed normally without the cal mag?
swazifarmer
Well-Known Member
You might not need to flush, like I said the slow release is moderate so it’s your feeding that’s the problem.
speed420
Active Member
Feeding should be fine 500ppm the plants are autos and 47 days old from seed
swazifarmer
Well-Known Member
Flushing won’t remove all the slow release nutrients hence why I said ease up of feeding.
TintEastwood
Well-Known Member
Coco. Common practice and recommended to feed at varying PH. 5.7 thru 6.3. Fresh water alone, not recommended for coco.
This is my go to Coco college.
https://cocoforcannabis.com/how-to-prepare-and-buffer-coco-coir/
This is my go to Coco college.
https://cocoforcannabis.com/how-to-prepare-and-buffer-coco-coir/
