ok…lets back up a bit here. Your answer to …do you check your solution before feeding and you answered …Will Check ! That right there tell’s me you haven’t which very well may be your problem. Until you do we should stop right here. Make a batch of your solution as you always do ok and tell me what the PH is. Ok
Your humidity is fine for now.
Will
Depending on manufacturer, the light could be too close. Best advise, use the hand check technique. Place the back of your hand at the canopy of the plants, if it is comfortable to keep your hand there, it SHOULD be OK for the plants. I would also check with the maker of the light to see what they recommend for distance. Good Luck. Jerry
It isn’t LED light burn, if it was the top/closest leaves to the light would be the most burnt.
I’m still leaning towards a pH related nutrient deficiency, except for the fact that we don’t know what exactly the: [quote=“puffdaddyk, post:35, topic:1241”]
EXTREMELY diluted Grow Big solution with water… brief misting spray on top of leaves, and gently pouring into soil/container.
[/quote]
What is the make up of this nutrient system? I’m not familiar with it anyway. Especially at very dilute levels, depending on what exactly is in the nutrient itself, and what type of water they’re giving it, and maybe what the make up is in the soil. The extremely dilute solution could actually be a cause of a nutrient deficiency.
Also, the brief misting of the leaves can cause what might kind of look like what is in the pictures, and some might even call it “splash” burn, from the nutrient mixture going straight on the leaves, and foliar spays with the lights on can also cause similar looking burns just in general. As I’ve said before, I don’t really recommend foliar spraying for beginners, as there are so many things to be looking out for and to know ahead of time. Keep it simple the first few times and then expand as you build experience.
Yes, depending on the makeup of your potting soil, you might very well want a lower pH.
But what type of meter? What are you testing? The water? The soil? The run-off?
I know I’m crazy pH guy, but I’m still guessing this is pH related 
LOL
Happy growing,
MacG
And so again, what is the make up of your soil, if it is real soil, 6.0 is too low.
~MacG
haha sorry for the bits-and-pieces motif while i’m at work sneaking updates
soil is happy frog with about 20% perlite.
I’m guessing a 6.0-6.5 should be fine in happy frog, assuming that is an accurate and properly calibrated reading of the soil.
And then again I’d want to know the other pH readings, all of them, as well as what the nutrient mix contains, what it is made of, all of the previously mentioned questions in my above response. Maybe the super dilute mix is the main cause of a nutrient deficiency
~MacG
Yes i appreciate every one of your questions, i’ll do my very best to answer each as soon as I can.
dealing with a partner on-site so there’s a relay delay happening – thanks for bracing though!! I hadn’t anticipated such speedy replies~
Also, it looks a little like over watering. And if it is at 6.0 now, how long as it been like that, how long since the change from 6.5, and is there any improvement in the plant, nothing happens instantly in soil, it generally takes a couple day to notice a change in the plant.
I often answer pretty quickly, not always this quickly, but you got lucky, lol. I may not be able to always answer this quickly.
~MacG
Right, definitely - hence my hesitation… i’ve asked to solidify some numbers going forward, and that’ll help us reorient things.
Much appreciated. Be back shortly with some helpful data!
