Blistering on leaf edges?

[roccus]

I am growing in coco with cana A/B, canazym and calmag, blue gold hydro, blue gold carb, I PH to 6.0, growing in tent with led, it has been 4 weeks since switch to 12/12, I can not find any info on this blistering on leaf edges also see problems with lower leaves

 

[Cannabliss]

You may have a case of light burn/stress. How many watts are your LED lights and how far away are they from the plants?

 

[Mr.furley]

Roccus, what's your run off Ph?

 

[roccus]

You may have a case of light burn/stress. How many watts are your LED lights and how far away are they from the plants?

I have 2 - 300 W led lights at about 18" above the canopy also note the pic above of the single leaf is a bottom leaf below the canopy so it does not get a whole lot of light

 

[roccus]

Roccus, what's your run off Ph?

goes in at 6.0 comes out at between 6.5 and 6.7

 

[roccus]

these pics were just taken within the hour this evening... I had done a flush 2 days ago, stopped feeding the cana A only giving cana B and canazyme, also am now adding tiger bloom... I can't say if they are getting any better or not yet I figure it will take another couple days to see if anything good is happening.. the first photos I put in my first post here were taken 2 days ago just for reference another thing I need to mention and don't know if it is right or not but some of the pistils in the flowers are turning brown/red color

 

[Cannabliss]

Today's pics look much better than those in your first post. Try raising the lights a few inches as well. Though they're 600W and run a bit cooler than HPS, the LED light spectrum is still pretty intense if put too close to the plants. Hope they continue to recover.

 

[roccus]

they sell them as 300W but they are more like 150W each.. I was on limited budget to get started cob lights is at the top of my list for upgrades... thanks all for your time, I will keep you all up to date on this issue

 

[D.A.A.S.69]

Morning roccus, pretty pictures, what size are your pots ??

 

[roccus]

Morning roccus, pretty pictures, what size are your pots ??

I am using 3 gal cloth pots this grow but next grow I plan to use 3 gal equivalent air pots and cut back veg time from 5 1/2 week to 5 or maybe 4 1/2 weeks also will go KISS being mu first grow here I am learning a lot I just hope they keep going so I can bring them to harvest these are Aurora Indica regular fem I got from nirvana... according to their flowering time they still have 5 to 7 weeks to go to harvest

 

[roccus]

here they are now 4 weeks since switch to 12/12 but into week 3 for flower... how do they look overall and does any on look better or worse than the others??
some eaves fell off today from lower part of plant

 

[Mr.furley]

If you leafs are falling off it may be a Calcium deficiency what's that situation?

 

[roccus]

If you leafs are falling off it may be a Calcium deficiency what's that situation?

hmmm maybe I should up the dosage of calmag?

 

[Mr.furley]

How much are you giving now?

 

[roccus]

2.5 ml per gallon on calmag

 

[Mr.furley]

Yes I would push it to 5 ml per gallon. For a water or two to see if you notice a Improvement.

 

[roccus]

sounds like a plan