Very large plant Curling from the top down please help.

[orrganic]

Its not an auto but i know the principles are the same any help appreciated.

The plant is a white widow x big bud from seedsman
Under a mars2 900 (a bit close for comfort to it also)
its an a large roughly 40 litre plastic pot in bagged perlite coco blend
Being fed Nulife ab bloom monsta bud and calmg
Active air intake relying on passive outtake so it does get a bit hot with the large light

was cruising into flower with no issues besides heavy growth when a dose of potash was added to its mix. My friend says it always drooped a little immediately after watering but it was just what it did. but this time the leaves are visibly stressed thinning cupping curling downward at the top of the main heads and fan leaves showing brown/bronze marks up the leaf margin.

The plant is showing sativa dominance so we assumed p/k toxicity and went with a flush of plain water only 14-16 litres though. Another flush has been done since and apparently looking worse!

I can get more details and photos as needed. Its for a very good friend and i'd actually be heartbroken for him if his baby kicks the bucket!

 

[IceWater421]

Its not an auto but i know the principles are the same any help appreciated.

The plant is a white widow x big bud from seedsman
Under a mars2 900 (a bit close for comfort to it also)
its an a large roughly 40 litre plastic pot in bagged perlite coco blend
Being fed Nulife ab bloom monsta bud and calmg
Active air intake relying on passive outtake so it does get a bit hot with the large light

was cruising into flower with no issues besides heavy growth when a dose of potash was added to its mix. My friend says it always drooped a little immediately after watering but it was just what it did. but this time the leaves are visibly stressed thinning cupping curling downward at the top of the main heads and fan leaves showing brown/bronze marks up the leaf margin.

The plant is showing sativa dominance so we assumed p/k toxicity and went with a flush of plain water only 14-16 litres though. Another flush has been done since and apparently looking worse!

I can get more details and photos as needed. Its for a very good friend and i'd actually be heartbroken for him if his baby kicks the bucket!

Got any pics ???

 

[orrganic]

I will later on.

 

[orrganic]

Temps at the top of the canopy are 24-26 degrees c but have been upto 30.
Brown bronze burn going from leaf margin inward over top fan leaves.
Branches have drooped outward away from the light but are averaging 30cm from the light.
It was fed 8 -10 L of plain water and ran off about 4 L.

 

[Yeatster]

30 cm =12". That's pretty close. Is there a way to raise the light? I assume this would be part, if not THE problem.

Pics will help.

Peace

 

[Waira]

..lights are too close for sure,... but this may not be the total problem, until I get pics there's nothing I can really do in regards to the feed/flush deal,...

 

[orrganic]

Camera went dead yesterday as i went to take a photo grr... some photos should be on the way though!

After looking yesterday I've assumed its a chemical salt build up causing a follow on effect of toxicity or deficiency that happend to show up as a potash sup was added to the feed, that may or may not have p/k scorched her

The light is at maximum height! and so are the heads

Also worth noting, the previous run where the same strain (seed not clone) and the sativa dominant of the two reached VERY close to the light closer than 12" even, for 9-10+ weeks and finished with only minute amounts of bleaching on some big buds!

This one is also sativa dominant and grew nearly identical to the last.

So to summarise, Big plant vegged for 2+ months in full coco, never flushed, thrown into flower reached for the skies and copped a p/k raise days before salt build up kicked in...

I'll get some pictures asap and try my best for some healthy after shots but the gardener is a bit shy haha..
I have tried to get them on here, hopefully some good advice and can help coax them into a nice user name and avatar haha.

Thanks everyone so far.