Transplanted into larger pot-coco-possible calcium deficiency-need help

[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

 

[Feggy]

Any help at all? The plants are getting worse

 

[mrfreeze682]

i got the same thing bro

 

[Zerberus]

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

If you didn't change anything from your routine then I think you shouldn't worry too much just keep an eye on it, the tips can curl due to stress from the transplant...

Why did you cut them off? Was the plant in need of trimmings?

Those look like healthy leaves to me still, it's normal for leaves to curl once in a while it can happen, there's a lot of factors to take into account.

Did you transplant with the old 1gal medium moist? Or was it dry?

If it was moist and you watered again after transplant then it might just be over watering. (This would cause the curl in the leaves)

The purpleish color is common with low temperatures, if you sprayed the plant the same day of transplant and the leaves where wet in the night when the temperatures dropped it could be just that.

Where were those leaves located in the plant? Can you post pictures of the actual plant?

Imo just need to keep an eye on it, if you see more leaves turn purple and curl then you know something is wrong, but 3 leaves after a stress period and a cold 67f night doesn't mean necessarily your plant has something wrong.

This is just my opinion tho, i don't have experience with this issue since I'm new to growing myself, but i have read and watched just about everything I can find.

 

[bullfrog13]

I never seen this issue before. it looks similar to a magnesium issue from un buffered coco
so what happened did they survive ?
was it just shock ?
obviously it wasn't the temperature or overwatering.