Transplanted into larger coco pot and have possible calcium issues?

[Feggy]

Hey everyone, I had these plant in 1 gallon coco pots, looked great.
Last night I transplanted them into larger, 3 gallon pots using the same coco.
Overnight most of the fan leaves turned into brown/purple in between the veins and some have curled at the edges.
Canna nutirents-last night was a half dose. Ph 6.0
76f to 67f(night)
Indoor grow-light optics slim 650s
24” above plants-70% strength

This is first time with this strain
Pink berry
Any help would be really appreciated

 

[buckaclark]

Did you prewash and charge your coco.Is it dry? Or less than 72

 

[Wastei]

Hey everyone, I had these plant in 1 gallon coco pots, looked great.
Last night I transplanted them into larger, 3 gallon pots using the same coco.
Overnight most of the fan leaves turned into brown/purple in between the veins and some have curled at the edges.
Canna nutirents-last night was a half dose. Ph 6.0
76f to 67f(night)
Indoor grow-light optics slim 650s
24” above plants-70% strength

This is first time with this strain
Pink berry
Any help would be really appreciated

You have to be more specific to get proper help. We can't see what you see so you have to give us as much information as possible.

Canna Coco? Do you use pre rinsed and buffered Coco coir or rehydrating and buffering coir bricks?
Temps are a little low for containers.

 

[Feggy]

Update on the next day-they are no better but they’re no worse either.
I used Cyco brand coco from a bag, which is prewashed and buffered. Have used it for 2 yrs without a single issue. I did give it a good rinse before I used it (as per usual)

I had fed it after with half dose of nutrients (canna) until I got a good amount of run-off

I’m just guessing it’s Calcium that is the problem, I’m still relatively new at this and learning. I appreciate the time taken to reply to this, thanks

 

[Wastei]

Update on the next day-they are no better but they’re no worse either.
I used Cyco brand coco from a bag, which is prewashed and buffered. Have used it for 2 yrs without a single issue. I did give it a good rinse before I used it (as per usual)

I had fed it after with half dose of nutrients (canna) until I got a good amount of run-off

I’m just guessing it’s Calcium that is the problem, I’m still relatively new at this and learning. I appreciate the time taken to reply to this, thanks

Need more data to be able to help.
Pictures tells more than words. Have you done any other changes? What light are you using and what distance? Do you do weekly calibration on your pH pen?

 

[Feggy]

It’s all in the original post, the light and pics
Light is optic slim 650s at just over 24” and not quite 70 percent strength
Ph is at 6.0, i stay on top of that

 

[rkymtnman]

what EC is a half dose of your nutes?

 

[Feggy]

It’s .8
Update second day and more leaves are looking like this