Few plant issues in flower, suggestions?

linky

linky

Well-Known Member
Hey all, have a new setup going. They have been in flower for 10 days. I have sealed room. Here are room parameters

Temps 82 in room 86 canopy, lights off 72-74
co2 1500-1600
humidity 45-55
canna coco in #5 pots
canna coco nutrient line
40 gallon res, 400 a and 400 b, 200 cannazym, 100 rhizo, 30ml mammoth P, 50 ml cali magic (no canna boost yet)
4 x 4 tray, flooding every 3 hours when lights on, once during lights off
EC 1.6-1.8
PH 5.7 - 5.9
water temps 72-74
mix of 1000 watt HPS and 1000 watt Gavita DE lights

I am only having this issue on a few of the 12 plants I have growing. Seems like couple issues. The wrinkle leaves issue has been there since the beginning on one specific strain (exodus cheese, mostly new growth), not having the yellow/damage leave issue. The yellow/burnt looking and unhealthy leaves issue is mostly on one other strain (grape god) and just started a couple days ago.

Sorry for the bad pictures, hate that green look with hps lights.

**updated with photos taken through blue glasses


thanks all for any input

plant1.jpg plant2.jpg plant3.jpg plant4.jpg plant-4.jpg plant-4.jpg
 
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bobtokes

bobtokes

Well-Known Member
looks like you are giving them too much N, I don't usually need to go higher than 1.1-1.2 EC what ever strain i'm growing with canna A/B, what is the EC of your plain water ?
looks like MG def as well, i would let your PH drift up to 6.3-6.5 so you don't lock out MG and Calcium.
 
linky

linky

Well-Known Member
bobtokes said:
looks like you are giving them too much N, I don't usually need to go higher than 1.1-1.2 EC what ever strain i'm growing with canna A/B, what is the EC of your plain water ?
looks like MG def as well, i would let your PH drift up to 6.3-6.5 so you don't lock out MG and Calcium.
Click to expand...
I am using RO water, since using canna coco the ph has never gone over like 6 or 6.1 on its own, I could use ph up if need be though. I lowered the ec to 1.3 last night by doing a top off. I will watch how its going over the next few days.
 
HydoDan

HydoDan

Well-Known Member
The claw like shape of your leaves is a tell tale sign of nitrogen toxicity..
usually starts on old growth and works its way up.. @bobtokes is right on!
 
linky

linky

Well-Known Member
bobtokes said:
if your using RO water you will need to give them a shot of cal/mag
Click to expand...
I added a little bit of cali magic to the reses when I put them into flower, I only added 50 ml though since I was not really sure if they needed more cal/mag then what the canna coco a/b provided. Since topping the reses (lowering the EC) they have not seemed to get any worse at least, still keeping an eye on them of course though. I also flushed them with just pure ro water as well.

How about this, this the same issue overall, to much nitrogen?

plant.jpg
 
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bobtokes

bobtokes

Well-Known Member
linky said:
Most new growth seems to be looking ok, still have a bit of wrinkling on the one strain though, will go have a better look tonight after lights on.
Click to expand...
have you raised the PH yet, you need to raise the PH to at least 6.3 to allow the uptake of cal/mag, do that 1-2 times a week
 
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