LEDs causing magnesium like issues

[gaslabs]

This looks more like a nutrient issue than a lighting problem...possibly a potassium deficiency or nutrient lockout. Have you tried flushing the medium with plain R.O. water? I’d also recommend lowering your pH to around 5.8.
Regarding the roots on the sides: if your medium produces a lot of runoff and water is collecting along the sides of the pot, that’s where the roots will naturally grow. If it’s not runoff related, try watering closer to the stem so the roots develop more toward the center. Many times, when roots grow along the sides and wrap around the outer edge of the medium, it can give the false impression that the plant is rootbound. Good luck!

 

[Tattooguy8]

Yeah I’m pretty sure it’s a nutrient issue as well. Just can’t find out why. Nutrition is compete. Straight of gh charts. I’ve tried doing multiple weekly flushes with tap and ro and separate times and with varying amounts. I’ve tried running 5.8-5.9 ph and it seemed to make the situation slightly worse. That’s how I settled on 6.5 in Pete. My runoff is usually showing around 6.0 but there’s conflicting info that runoff even matters.

 

[GasPlease]

I’m definitely not stuck in my ways. I’ve tried all of this. Been down all these roads. I’m sure you know marijuana don’t require a dark period like some plants. Now I’m not saying that necessarily relates to my situation. Dli is what matters is it not? If that’s not true then flu and par charts are worth nothing?

Also the t5 I sprout my seeds under and live under the first two weeks of their life at on 24 hours a day as well. The bulbs are 1” from the tops at all times and they are 6500k. That’s pretty blue isn’t it? If I didn’t see so many growers around the globe running much higher ppfd than me at 24 hours at a much lower ec I wouldn’t think twice.

Another reason I e always settled on 24 hours is I’ve had and still have a few moms that borderline start to flower at 18/6.

Also when I experimented with shorter days I also had unacceptable node spacing especially on seedlings while tight node spacing under the t5.

Damn Im trying to get to sleep but Im locked in. All this t5, hid, led, veg room, flower room, seedling under this, and veg under that. Its comparing apples to oranges.

 

[GasPlease]

"This looks more like a nutrient issue than a lighting problem"

I agree there is a nutrient problem. But everything works in harmony when growing indoors. Lights absolutely affect nutrient interactions. Same for vpd.

 

[Tattooguy8]

"This looks more like a nutrient issue than a lighting problem"

I agree there is a nutrient problem. But everything works in harmony when growing indoors. Lights absolutely affect nutrient interactions. Same for vpd.

Sorry this is bugging ya so much and I appreciate all your insight. I’ve been dealing with it for four years haha. Not to discredit you in any way but I can’t grow these plants in the dark. I just don’t think turning the lights down so far that I’m getting 6” node spacing and seedlings that stretch and fall over is a proper fix for my situation. If the led light with that low of a ppfd, average across my canopy right now is 180, then led lights are poisonous to plants? Is this a possibility? There’s plenty of data that shows leds being harmful to humans. I’m not saying this is the problem but boy has it crossed my mind.

The one thing I can think of is doing a plant with some imported water. Maybe I should get ro water from another source a give it a go?

 

[Tattooguy8]

Damn Im trying to get to sleep but Im locked in. All this t5, hid, led, veg room, flower room, seedling under this, and veg under that. It’s comparing apples to oranges.

Sorry about all the apple s to oranges stuff. I’ve done so many experiments the last four years you would be blown away. Something is making nutrients unavailable or the light is unavailable. I’ve tried sprouting seedlings under 300 ppfd of led and they literally try to kill themselves. They’ll stretch 6”. This is how I settled on the t5 for sprouting. No more crutches and spindly seedlings. They come out of the media and just start doing their thing.

 

[GasPlease]

I recently vegged a photo under 24 hrs led with no problems. 43 dli. 0.9-1.1 vpd. I was growing in a 5gal airpot with organic soil using dry slow release amends. Hand watering 1gal slowly with minimal runoff. Allowing drybacks until pot is light. Definately not the exact same grow but kinda. 24hrs of led and high dli are possible but something about your combination is off. A dark cycle might not be required but it doesnt hurt them and it does help them.

I just don’t think turning the lights down so far that I’m getting 6” node spacing and seedlings that stretch and fall over is a proper fix for my situation

None of this happens with my grows. 24 hrs led with autos in rockwool no problems. 24hrs led with photo in soil no problems. 18/6 led in soil no problems.

They’ll stretch 6”. This is how I settled on the t5 for sprouting. No more crutches and spindly seedlings. They come out of the media and just start doing their thing.

Same to this. No problems with leds and sprouts/seedlings.

 

[GasPlease]

Its all here. Im not very good about listing all the details but the grows and plants are there.

The Gas Chamber! Killer Buds!

Welcome to the Gas Chamber! Gas Please 420 Skunk Avenue Gasville, ZA, 02496-1620 Cheesy States of Cannabis This will be my place of residence. I like the idea of having a continuous journal of all my grows along with an open line of communication with the community. I'll be posting everything...

www.thcfarmer.com

 

[GasPlease]

Seed to current state all led, hydro, and gen hydro. Its an auto in rockwool tho.

 

[GasPlease]

Here she is. Dont judge the failed scrog method. This is that photo sprouted and vegged under 24 hrs led.

 

[GasPlease]

Maybe I should get ro water from another source a give it a go?

RO water is RO water. Source doesnt matter unless your filters are bad and if youve been dealing for years you shouldve already done tests on your RO water before mixing it with anything. Now Im thinking youre just a troll.

 

[Tattooguy8]

Here she is. Dont judge the failed scrog method. This is that photo sprouted and vegged under 24 hrs led.

View attachment 2600365

Plants look great. Don’t take this as being rude but I’m well aware that LEDs can grow beautiful plants. The question is why can’t I duplicate what the rest of the universe does under led?

 

[Tattooguy8]

RO water is RO water. Source doesnt matter unless your filters are bad and if youve been dealing for years you shouldve already done tests on your RO water before mixing it with anything. Now Im thinking youre just a troll.

Here’s troll for ya. I can show off pretty plants as well. This is one of my tables right now. 57 days of flower. No have no respect for you at all. Do water is not ro water. All ro water has some ppm in it. What that ec is is different for everyone depending on what water it’s filtering. I knew it was only a matter time before someone started posting pictures of their plays to prove they can grow. Geeze.

 

[Tattooguy8]

I recently vegged a photo under 24 hrs led with no problems. 43 dli. 0.9-1.1 vpd. I was growing in a 5gal airpot with organic soil using dry slow release amends. Hand watering 1gal slowly with minimal runoff. Allowing drybacks until pot is light. Definately not the exact same grow but kinda. 24hrs of led and high dli are possible but something about your combination is off. A dark cycle might not be required but it doesnt hurt them and it does help them.


None of this happens with my grows. 24 hrs led with autos in rockwool no problems. 24hrs led with photo in soil no problems. 18/6 led in soil no problems.


Same to this. No problems with leds and sprouts/seedlings.

No, a dark period doesn’t “help” marijuana. Marijuana doesn’t require a dark period. Now if by help you mean not hitting a plant with too much dli then yes. If you can do math you should be able to understand that 180 ppfd at 24 hours is nowhere close to “pushing” a plant.

 

[Tattooguy8]

I recently vegged a photo under 24 hrs led with no problems. 43 dli. 0.9-1.1 vpd. I was growing in a 5gal airpot with organic soil using dry slow release amends. Hand watering 1gal slowly with minimal runoff. Allowing drybacks until pot is light. Definately not the exact same grow but kinda. 24hrs of led and high dli are possible but something about your combination is off. A dark cycle might not be required but it doesnt hurt them and it does help them.


None of this happens with my grows. 24 hrs led with autos in rockwool no problems. 24hrs led with photo in soil no problems. 18/6 led in soil no problems.


Same to this. No problems with leds and sprouts/seedlings.

Is this acceptable growth to you. I can not turn the lights down any more. These seedlings are at least four weeks old right now. Thin stretchy spindly growth with purple everywhere. You know all my parameters right? Turning the lights down might keep my plants from dying but it’s not the proper solution to the problem.

 

[GasPlease]

View attachment 2600370View attachment 2600371View attachment 2600373
Here’s troll for ya. I can show off pretty plants as well. This is one of my tables right now. 57 days of flower. No have no respect for you at all. Do water is not ro water. All ro water has some ppm in it. What that ec is is different for everyone depending on what water it’s filtering. I knew it was only a matter time before someone started posting pictures of their plays to prove they can grow. Geeze.

Just a troll posting bait. There are only so many variables. Youve got 25 years of growing but cant fix this in the 4 years youve been trying?

The question is why can’t I duplicate what the rest of the universe does under led?

Maybe your a bad grower? Cant adapt? Not really trying? Tunnel vision?

No, a dark period doesn’t “help” marijuana. Marijuana doesn’t require a dark period. Now if by help you mean not hitting a plant with too much dli then yes. If you can do math you should be able to understand that 180 ppfd at 24 hours is nowhere close to “pushing” a plant.

Dark periods definately help cannabis. And youve already said it doesnt require a dark period. I replied to that and now you replying it back to me. Everything Ive talked about is a combination of changes and yet you focus purely on light.

Is this acceptable growth to you. I can not turn the lights down any more. These seedlings are at least four weeks old right now. Thin stretchy spindly growth with purple everywhere. You know all my parameters right? Turning the lights down might keep my plants from dying but it’s not the proper solution to the problem.

Where do you get turning down the lights? Never suggested less dli.

 

[carlosescobar]

The most confusing part of this is if I put these girls in the flowering room with almost identical parameters they perk right up. Not perfect but respectable looking plants. I go from struggling at 200 ppfd to 600 ppfd.

Someone mentioned earlier root ball temps. I guess that’s the only thing I haven’t played with. Should I be heating the root balls directly? Sounds pretty crazy to me.

Im no expert but i always thought yellowing leaves especially down the edges, was from potassium deficiency? this will happen if your light is too intense for the plant...did you say you had it at 7 inches away? one other issue might be that you are giving calmag with the waterings , calcium, magnesium and potassium compete for space on the root zone , so if the plant is getting calcium it doesnt need it might just hang about on the roots and block the mag and potassium!
ive had similar issues with strange roots, (might have been me you saw post about 4 weeks ago ) i have this problem with my roots not filling the pot , they stay small and hairlike , so i am only uptaking about a quarter of the nutrients, . ive narrowed it down to overwatering, or cold soil temps or both ? (or possibly the fact i only gave it 4-5 weeks of veg) . i had a hidden plant last year i kept forgetting to water and when i repotted it the roots were perfect , thick white and filling the pot.
soil temp is definately important, i noticed it first with germination problems, as soon as i got a heat mat and got the soil temp uo to 22 0C or above i had 100% germination and proper growth .

 

[Tattooguy8]

Just a troll posting bait. There are only so many variables. Youve got 25 years of growing but cant fix this in the 4 years youve been trying?


Maybe your a bad grower? Cant adapt? Not really trying? Tunnel vision?

Dark periods definately help cannabis. And youve already said it doesnt require a dark period. I replied to that and now you replying it back to me. Everything Ive talked about is a combination of changes and yet you focus purely on light.

Where do you get turning down the lights? Never suggested less dli.

I’m I in the twilight zone? I think you’re the troll. I’ve been very clear about everything I’ve tried. You call all the experimenting and effort tunnel vision? Many times you have suggested I need to turn down the light or give a dark period. What am I missing?

If it’s not the light then what is it? There’s only so many variables right. If my veg room and flower room are virtually identical environments and I change nothing as far as ph, ec, media water timing or dry back % and the plants get healthy all the way up to about 900 ppfd then what is it? I spent 20 years growing weed I would guess you aren’t capable of and because I have a difficult to solve situation I can’t grow. You’re sad man.

Just curious how do you think less dli is achieved?

 

[GasPlease]

Im no expert but i always thought yellowing leaves especially down the edges, was from potassium deficiency? this will happen if your light is too intense for the plant...did you say you had it at 7 inches away? one other issue might be that you are giving calmag with the waterings , calcium, magnesium and potassium compete for space on the root zone , so if the plant is getting calcium it doesnt need it might just hang about on the roots and block the mag and potassium!
ive had similar issues with strange roots, (might have been me you saw post about 4 weeks ago ) i have this problem with my roots not filling the pot , they stay small and hairlike , so i am only uptaking about a quarter of the nutrients, . ive narrowed it down to overwatering, or cold soil temps or both ? (or possibly the fact i only gave it 4-5 weeks of veg) . i had a hidden plant last year i kept forgetting to water and when i repotted it the roots were perfect , thick white and filling the pot.
soil temp is definately important, i noticed it first with germination problems, as soon as i got a heat mat and got the soil temp uo to 22 0C or above i had 100% germination and proper growth .

Ive had the same issue with thin roots. My soil grows are normally in fabric pots on the tent floor. I'll be checking my root temps next soil runs for sure.

 

[Tattooguy8]

Just a troll posting bait. There are only so many variables. Youve got 25 years of growing but cant fix this in the 4 years youve been trying?


Maybe your a bad grower? Cant adapt? Not really trying? Tunnel vision?

Dark periods definately help cannabis. And youve already said it doesnt require a dark period. I replied to that and now you replying it back to me. Everything Ive talked about is a combination of changes and yet you focus purely on light.

Where do you get turning down the lights? Never suggested less dli.

I will admit over the last four years I’ll get a burst of energy and experiment my ass off. Things don’t work so I always fall back to what kind of makes it work. Six months later I get a hair up my ass and start experimenting again. Different nutrient company’s, ph, ec, runoff, water frequency, lights, media, tap, ro, air exchange, air movement I can go on and on. Most of you do the same thing and devolve into some defensive position like I’m attacking you. I get it. Most people go I’ve the basics with me and when they find out I’m doing everything in their knowledge of how to grow and it doesn’t work this happens. Funny stuff.