what do u guys think is causing this?

sourdieselyumyum · Mar 30, 2015

Environment:
4x8
2000 watt hps
temps 82-88 degrees
Medium coco coir/perlite with gnat nix on top

Nutrients botanicare growilla grow/bud. Organic top dress

some plants are showing signs of calcium def/ nitrogen def. They were fed synthetic nutes during veg just started them on growilla veg with top dress about a week ago. The others look great besides the signs of the leaves look like they are getting ate or something. I'm thinking it might be from salt build up what do u guys think from these pics

a mongo frog · Mar 30, 2015

Heat, on every single picture.

Mr.Goodtimes · Mar 30, 2015

That first pic kinda looks like light burn to me, and your room is a little hot. Used to happen to mine when I had limited space and they get too close to the light.

What's your ph at? That would be my second guess... But pretty sure that's heat stress in every picture. Get your temps down and I'll bet it stops.

vostok · Mar 30, 2015

Early to mid nute burn ...ease back your nute by 50% for 7-14 days ...but first the dreaded flush to my blog:

https://www.rollitup.org/Journal/Entry/flush-baby-flush.30160/

once done hit it with some foilar fed calmag see them bright middle vein is 'bright' yellow

sourdieselyumyum · Mar 30, 2015

Yea 88 degrees is definetly high I was thinking 82-86 would be OK temp wise if I run ballast at 75% temps are around 82-86 max

what do u guys think is causing this?

sourdieselyumyum

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a mongo frog

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vostok

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sourdieselyumyum

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