What is going on with my room? LED vs. Sun

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Efbespn

Member
Hey guys,
Hope all of you are doing well with the current crisis. Stay high.

I'm on my third grow attempt. Previous ones have failed all from the same problem, I just can't seem to pin point the cause.
Problem starts to show after two or three day after I've put them under the LEDs. I'll fight it till I just say fuck it and bring the plants outside into the sun.
After a day outside, the plants starts to adjust killing all the infected leaves, come day four outside and plants are green and thriving.
I am really wanting to get a whole indoor grow from seed to harvest in my grow room but I just can't seem to figure out why what is causing my problems.
After much research I can ascertain that it is a Mag problem. But it's constant. I feel I've learned alot from my previous failures and been putting alot of effort into getting this one right. I'm constantly trying to remind myself that, I can do this. But I know I can't be fighting a constant uphill battle when there are bills to be paid.
Water : RO 17-20 ppm
Medium: Promix bx
Lights: Electric sky es300 v2
Nutrients : Jack's 321
3g Jack's part A
2g CalNit
1g Epsom
Ph 6.0-6.3
First pic is inside the room
Second pic is the same plant outside.
 

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TevinJonson

TevinJonson

Well-Known Member
it almost looks like their starving your giving them nutes so idk id try a better soil maybe?. if not that id verify ph try between 6.3-6.5 also let them live off the soil as long as possible then add nutes starting from like 300ppm and up to 1500ppm in flower because you could be burning them. look into VPD outside may be more favorable. why not just grow outside if you can out them in the ground youll get better yield anyway. whats your ppm on the feed???
 
TevinJonson

TevinJonson

Well-Known Member
starting about 18 to 24 in finish about 12 to 18 it depends on how they respond but further away just means more stretch
 
SnidleyBluntash

SnidleyBluntash

Well-Known Member
It Could be bleaching. From having too close to the LEDs. But could also be a deficiency as you described, which could be from having too close. The closer light=more transpiration=need more nutrients.
 
E

Efbespn

Member
TevinJonson said:
it almost looks like their starving your giving them nutes so idk id try a better soil maybe?. if not that id verify ph try between 6.3-6.5 also let them live off the soil as long as possible then add nutes starting from like 300ppm and up to 1500ppm in flower because you could be burning them. look into VPD outside may be more favorable. why not just grow outside if you can out them in the ground youll get better yield anyway. whats your ppm on the feed???
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Hey @TevinJonson . Thanks for the feedback. Yeah you know, i think youre right about them starving. I havent really fed them full strength yet as i just got them from a friend about two weeks ago. So ive been working my way up in the ppm. just fed them jacks at 80% last night. My VPD when light are out at 0.94kpa and then when lights go on itll go upto 1.9. noticed on the Pulse app data when i increased the light intensity it shot my vpd to 1.9. I have a small outdoor grow as well but I spent some serious money on my lights and grow room id like to make my money back with it.

PPM feed for JACKS 321 @ 80% came out to 900 ppm. I seen on a couple sites that full strength JACKS PPM should come out at 700+, so i was surprised to see it read 900+ on my TDS meter. Found out from another thread on here about the different TDS scales (500,600,700) so the 900 seems to be correct. T
 
J

Jess3097

Member
TevinJonson said:
starting about 18 to 24 in finish about 12 to 18 it depends on how they respond but further away just means more stretch
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Are your lights on full power at that height? Those are the proper hanging heights for that light. I would suggest running it at the lowest dimming option at the recommended height, after a week you will likely be able to slightly turn up the dimmer, and continue to turn it up as they grow larger.
 
E

Efbespn

Member
SnidleyBluntash said:
Could it be bleaching. From having too close to the LEDs. How close do you have them?
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Yeah iv realized it could be a compound of stuff. The lights im sure plays a huge role in the problem. Clones came from a friend whose veg room is running under a bunch of t5s. So when i brought them in I should have turned my lights all the way down for the first couple days and increase slowly, being that they were probably too intense , the plants were starving for more feed. I was falling behind in feed.
 
TevinJonson

TevinJonson

Well-Known Member
How close u have them .... your lights should be 24in away if your not sure. If you have good soil you shouldnt have to feed untill flower and veg u can use t5s i think your missing something simple. Try good soil little water and far light and slowly add to it rather than doing everything and remiving an issue at a time just my 2 cents
 
E

Efbespn

Member
I have my lights running at 50% on the dimmer 10k lux at 36 in rn. Im using a dimmer till i hit 100% then plan on working down on the height when I hit flower. I could turn down the dimmer and lower the lights down to 10k lux. Should I?
 
SnidleyBluntash

SnidleyBluntash

Well-Known Member
But at the same time, you have leaves all over the plant that look the same, so, if it was he lights it would be the highest leaves.
So back to the nutrients, 900ppm is high, but how many ppm of each of your additives makes up that 900? And which scale are you on, 0.5?
 
J

Jess3097

Member
SnidleyBluntash said:
But at the same time, you have leaves all over the plant that look the same, so, if it was he lights it would be the highest leaves.
So back to the nutrients, 900ppm is high, but how many ppm of each of your additives makes up that 900? And which scale are you on, 0.5?
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I believe both his feeding schedule and light height/power level are off. The top of the plant looks like it was light burnt. The bottom of the plant looks to be from a lock out issue. Assuming from improper feeding. These guys will help you they know what they are talking about. Listen to them and I am sure you will succeed.
 
E

Efbespn

Member
SnidleyBluntash said:
But at the same time, you have leaves all over the plant that look the same, so, if it was he lights it would be the highest leaves.
So back to the nutrients, 900ppm is high, but how many ppm of each of your additives makes up that 900? And which scale are you on, 0.5?
Click to expand...
I say the lights because when i brought them outdoors they greened right up. so im thinking the plants are requiring more mag nutes with the LEDs. I gave them nutes while indoors ,the problem progressed but stop when I brought them outside in the sun. so leads me to think the LEDs are giving them a reaction.
I hear you with the high ppm readings, i was surprised too. Of course i had to google my tds meter (its the Cheapo one, TDS Meter 3) says its 0.5. Also watched a couple youtube vids and i think my meter might be one of the defective ones that they sell in bulk to anyone ,who in turn post them up for sell on ebay. need me a blue lab. I dont measure my ppms until after ive mixed everything. i figured if i stick to the measurements of what JACKS 321 calls for i should be good.

Jess3097 said:
I believe both his feeding schedule and light height/power level are off. The top of the plant looks like it was light burnt. The bottom of the plant looks to be from a lock out issue. Assuming from improper feeding. These guys will help you they know what they are talking about. Listen to them and I am sure you will succeed.
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ROLLITUP is the Shiiiiiit! Definitely my one stop shop for all things growing. The knowledge on here is very much appreciated.
 
J

Jess3097

Member
The LED Is not the issue lol. You are feeding your plants way to much. Never follow a nutrient schedule. The plant tells you when it needs something. Your starting with reverse osmosis water. When mixing your water do you add your calcium nitrate and Epsom salts first to get a ppm of 125-175? If not you need to. it creates perfect buffering stability in the water. (If you want more scientific terms on stability of water for plants google it or buy Ed Rosenthal marijuana growers hand book. You won’t regret it. Low and slow is how you want to give a plant nutrients. It’s better to have a deficiency then it is to have a toxic over dose or lock out. Feed your plant every third water. Every water Give plants a ppm of 125-175 supplement with calmag every water to get that. I have never had to feed my plants more then 700ppm at one time all the way up until I harvest.(in soil) you don’t need much when they are small 125-250 is the most you should give a seedling. The first half of veg 250-450. give them only 450-600 Every third water in the second half of veg and all of flower depending how hungry they look. Sometimes you have to feed every second water when they are hungry. Watch your plants they tell you when something is wrong. You will get the hang of when they need to be fed by the way they look. Keep your light 21-24 inches above your babies on the lowest dimmer setting. Slowly turn the dimmer up as the plants grow until you reach full power then adjust the height as needed
 
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E

Efbespn

Member
Good shit bro. I
Jess3097 said:
The LED Is not the issue lol. You are feeding your plants way to much. Never follow a nutrient schedule. The plant tells you when it needs something. Your starting with reverse osmosis water. When mixing your water do you add your calcium nitrate and Epsom salts first to get a ppm of 125-175? If not you need to. it creates perfect buffering stability in the water. (If you want more scientific terms on stability of water for plants google it or buy Ed Rosenthal marijuana growers hand book. You won’t regret it. Low and slow is how you want to give a plant nutrients. It’s better to have a deficiency then it is to have a toxic over dose or lock out. Feed your plant every third water. Every water Give plants a ppm of 125-175 supplement with calmag every water to get that. I have never had to feed my plants more then 700ppm at one time all the way up until I harvest.(in soil) you don’t need much when they are small 125-250 is the most you should give a seedling. The first half of veg 250-450. give them only 450-600 Every third water in the second half of veg and all of flower depending how hungry they look. Sometimes you have to feed every second water when they are hungry. Watch your plants they tell you when something is wrong. You will get the hang of when they need to be fed by the way they look. Keep your light 21-24 inches above your babies on the lowest dimmer setting. Slowly turn the dimmer up as the plants grow until you reach full power then adjust the height as needed
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Good shit bro. I'm definitely putting effort in trying to get this one right. I'm doing the koot meds schedule rn. I dig the 21-24 at low dim. Been getting alot off "just adjust the dimmer". I get some lanky ones
 

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Jess3097

Member
Lmao. Sweet. I use advanced nutrients. I don’t follow their nutrient schedule I go by what the plant looks like to judge when and how much to feed. If I followed their nutrient schedule I would burn my plants and send them into a lockout. Feeding a plant low and more often is better then feeding it higher and less often. If you hang your light at that height on the lowest setting and you notice stretching slowly turn it up until it stops stretching .do not crank your light or you will burn your plants. If they are stretching on the lowest power settings try turning it up to quarter dial then go from there.
 
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