Please help I am gutted.

[Pinkfloyd1967]

Hi guys and gals, can anyone tell what is wrong with my precious plant, it’s gone great right through its cycle, but it’s now day 60 and for 7days it’s been getting worse ,
Any advice would be much appreciated.
Thanks in Advance Folks.

 

[saskraider12]

Hi guys and gals, can anyone tell what is wrong with my precious plant, it’s gone great right through its cycle, but it’s now day 60 and for 7days it’s been getting worse ,
Any advice would be much appreciated.
Thanks in Advance Folks.

Looks like cal mag or phosphorus deficiency.

 

[Pinkfloyd1967]

Looks like cal mag or phosphorus deficiency.

Yes that’s what I thought, but I just thought I would ask for other peoples opinions, cheers Bro

 

[BallsackSal]

I have had those same markings on my leaves. I have found that either adding or subtracting calmag has no real effect on the leaves. Except for the time I added a lot and it got worse. Have you had any big pH fluctuations, I believe I have noticed a correlation there. And that could effect absorption of some nutes. Is it just the leaves getting the most light?

 

[Del boy]

Hello if you fill this in will help people sort your probs out
Problem:

Medium/grow method:

Feed: and supplements used:

water source:

Strain/age:

light used:

Climate:

Additional info:

 

[Couch_Lock]

a phosphorous deficiency.....Add ur flowering nutes at half the recommended dosage, imo.

http://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg

 

[Mañ'O'Green]

Yes, it looks like a phosphorus problem but why? Too much, too little or a lock-out?

Since most new growers over-fertilize I usually lean it that direction in my diagnosis. Too much Calcium will lock-out Phosphorus.