Brown drying leaves (part 5)

Ugh... me again!

So following on from various other posts (including this one) the plant is another 2 weeks on and still I'm seeing browning on almost the whole plant. This is day 54 (week and I've been strictly controlling the PH now for a while since the last post but it's still got the same issue of dying / browning leaves. I cut away all of the completely dead leaves but new ones spring up in its place. Here's what she looks like today:



I'd say about 50% of the leaves have this issue on varying degrees, from top to bottom. Probably got another 5 weeks or so to go but I worry that it may not make it that far. Stuff I've checked / tried:

• Watering more / less
• Increasing humidity
• Controlling PH (always at 5.9 - 6.1)
• More / less light
• Spraying leaves with leaf-coat
• Repotting into a larger container
• Checked roots
• Checked for pest issues

Starting to think this is genetics but wonder if anyone has any further suggestions. This is 70% coco / 30% perlite indoor grow, with spiderfarm 1000 LED (small 60 x 60 x 160 tent) with plenty of airflow.

The plant needs magnesium, whether you are watering or feeding, add 3/4 tsp of Epsom salt to every gallon of water! Do that for the first 2 waterings / feedings, then stay with 1/2 tsp of Epsom salt to every gallon of water till 2 weeks before harvest. But just so you know, all those leaves that already have those brown spots will dry out and die, in other words you cannot bring those leaves back to life!

piratebug said:

The plant needs magnesium, whether you are watering or feeding, add 3/4 tsp of Epsom salt to every gallon of water! Do that for the first 2 waterings / feedings, then stay with 1/2 tsp of Epsom salt to every gallon of water till 2 weeks before harvest. But just so you know, all those leaves that already have those brown spots will dry out and die, in other words you cannot bring those leaves back to life!

Click to expand...

Thanks for the reply - I'll give it a shot starting today and post back.