Could this be light stress/burn?

kgrows

New Member
Hello, I’m a fairly new grower and have come across my first real snag. I took clones and trimmed some stuff on two plants. I put them in the bigger tent to recover before switching to flower. I watered with the usual stuff but added about 1/2 the recommended dosage of .advanced nutrients-revive. About 2-3 days after putting them in the larger tent the leaves started showing orangish colouration on the high spots. The new growth was skinny, light coloured, and had darker veins. A couple days later the tops started to look deformed and the new growth had burned tips. The only difference was the environment and the extra one time dose of revive. I raised the light, turned off the co2, dimmed the light to 50% (lowest I can go), turned off two fans, turned down the closed loop circulation fan and started running a 6” fresh air in-line constantly. The plants are starting to come around but it’s only been a couple days. I also trimmed off a lot of the damaged leaves. I sometimes chew on the stuff I cut off the plant for the taste but this time everything I cut tasted very bitter (in case that matters).
The tent they grew up in was always about 22°C and 60% humidity with a constant supply of fresh air. The larger tent was first 26°C and 75% humidity with a closed loop circulation, co2, and lots of wind between the lights and canopy. Now it’s vented from the outside, no co2, gentle breeze on each plant, and sits at about 23°c and 70% humidity. It’s been like this for about 1-1/2 days and the plants are starting to look better.

I think the problem was the light. The first tent has a growers choice e200 set at 25% about 20” above the plants. The larger tent has a Gavita 1700pro that was first set at 65% and about 16” from the plants. I now have the light dimmer to 50% at 29” from the canopy. I can’t dim any more with the trolmaster controller and can’t go any higher in the tent.

Anyway, I wanted to switch to flowering this weekend but I’m now thinking I should give the plants some more time to come around before putting them on flowering. I’ll post a few pics in hopes someone can confirm my issue was the light or recommend I look at something else and let me know if I should switch to flower or give them more time to come back

I’m growing Quebec gold 2.0 in 60/40 coco/perlite, on a 18/6 light schedule, watering each plant with 2L every two days. I’m using distilled water and advanced nutrients.
Sensi coco grow A - 16ml
Sensi coco grow B - 16ml
B52 - 8ml
Rhino skin - 8ml
Sensizym - 8ml
Bud candy - 8ml
The ph is always around 5.8-5.9
Thanks 7AFD114B-0C40-4ACE-B061-80345C6D38D8.jpeg2ECDF8F7-AC97-4E54-A5B4-28E57CA9C786.jpegB642BC80-7D97-47D0-A2AF-A6D316BBA7E2.jpeg
 
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