yellowing leaves during veg???? Help

[Guest 168361]

My Sour deiesl Ibl's leaves are yellowing I think its a cal mag def. I would post a pic but I cant yet I think. The plant is a couple months old and this is not a nitrogen def. how can i fix??? Is my PH too low?? I think it was around 5.5ish

 

[Blueshark]

Skruddles, are you running hydro? Yellowing inside out or outside in? Are you getting brown spots 3-5 days after yellowing? Need more info if possible.

What size pot if soil? How old are your girls?

 

[Guest 168361]

its coco with pearlite and earthworm castings. outside in...but not the tips. 5 gallon grow bag. not really brown spots....she is 2 months old

 

[Guest 168361]

bump....can someone please help....my plant is sick.call the doctor

 

[t.rex.]

If you complete the questionnaire located in "cannabis infirmary" forum, it will make it much easier to get help. Gotta let people know what is going on in your space, ie. Nutrient regimen, temperatures, accurate PH reading. . .

 

[EddieShoestring]

from that description it could be almost anything-
are they too wet?

eS

 

[Guest 168361]

What STRAIN are you growing? sour disel IBL
What was the establishing technique? (Were the seed or clone?) Clone
What is the age of your plants? 2 months
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? Veg
What Technique are you using? coco
What substrate/medium are you using?(Hydroton, RockWool etc.)n/a
What is the Nutrient temperature?
What Nutrient's are you using?floranova, floralicious+, ph down
What is the TDS/EC/PPM you are using?not sure.....lowish
What is the pH of the "Tank"?5.5ish
Are you sure your calibration is correct on your equiptment?not exactly but close
When was your last watering?yesterday....whenever its dryish
When was your last feeding change? (ie. grow-bloom-micro-additional)every water
What size bulb are you using?400 metal halide
What is the distance to the canopy? 6-10 inches
What is your RH Factor?60
What is the canopy temperature?76
What is the Day/Night Temp? (Include flucutaion range)no night cycle
What is the current Air Flow? (cfm etc.)ony a oscilating fan
Is the fan blowing directly at plants?yea
Is your water HARD or SOFT?softish
Has plant been recently pruned, cloned off of or pinched. no
Have any pest chemicals been used? If so, What and When?no
Are plant's infected with pest's?no

 

[EddieShoestring]

ventilation?

 

[Guest 168361]

hmm i had not really taken that into consideration. Although they are getting a breeze with a oscillating fan. Ive yet to install the ventillation system. I think it might just be that they are finicky with the nutrients. Im used to the AK47 feed schedule which is really high????

 

[farmdalefurr]

personally i think it sounds like their not getting enough food if their yellowing in veg. id get a cheap ass ppm meter ($20-25) and get their feedings up to like 900-1000. if that doesnt work id go with a little flush then restart your nutes. your gonna get a million different answers though

 

[HopefulNewb]

cal/mag add 1 to 1.5 tsp and within two feedings you should see an improvment.

 

[Guest 168361]

word

 

[mg75]

try foliar spraying a light mix of nutes and cal mag.
is your plant root bound? are the roots smelling rotten?
You can try flushing the coco with fresh water until the runoff is clear... after that, apply half strength nutrients and maybe some h2o2.
IMO nutes going into coco need to be between ph 5.8-6.1 for best results.
shake flora nova and floralicious vigorously as their "organic" compounds and humics tend to settle.

you need plenty of fresh air exchange or co2.

 

[headband 707]

What STRAIN are you growing? sour disel IBL
What was the establishing technique? (Were the seed or clone?) Clone
What is the age of your plants? 2 months
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? Veg
What Technique are you using? coco
What substrate/medium are you using?(Hydroton, RockWool etc.)n/a
What is the Nutrient temperature?
What Nutrient's are you using?floranova, floralicious+, ph down
What is the TDS/EC/PPM you are using?not sure.....lowish
What is the pH of the "Tank"?5.5ish
Are you sure your calibration is correct on your equiptment?not exactly but close
When was your last watering?yesterday....whenever its dryish
When was your last feeding change? (ie. grow-bloom-micro-additional)every water
What size bulb are you using?400 metal halide
What is the distance to the canopy? 6-10 inches
What is your RH Factor?60
What is the canopy temperature?76
What is the Day/Night Temp? (Include flucutaion range)no night cycle
What is the current Air Flow? (cfm etc.)ony a oscilating fan
Is the fan blowing directly at plants?yea
Is your water HARD or SOFT?softish
Has plant been recently pruned, cloned off of or pinched. no
Have any pest chemicals been used? If so, What and When?no
Are plant's infected with pest's?no

This is why I hate coco that shit SUCKS LOL.. Could be you have cheap coco and it will stave the plant if you don't get the balance right. I'm assuming it's gone too long to transplant into Promix? I had the exact same problem but it was the coco and it actually killed my shit..That has never happened to me so I know that shit sucks LOL peace out Headband707

Make sure you get your PH right buy a meter if your water is off ..

 

[OnTheWater]

yellowing leaves during veg???? Help

Been in coco for a good while now... 5.5 is way to low, at least in my experience. 5.8-6.2 sounds more like it but your plant will tell u what's good..

How the stems on your plant?

 

[Guest3498]

I can't say with certainty without seeing pictures, but sour diesel and related strains need a good bit of cal/mag... usually more so than other strains... And especially in coco!!

Feed with some cal/mag, it does make sense that this would be your problem...

also with coco I'd bump the pH up to 5.7-6.0...

 

[Hydropimp]

Did you charge the coco before?

 

[Abja Roots]

I'd put my money on the ph being way too low at 5.5. As said it needs to be 5.8-6.1/6.2

Best of luck. Check your coco if you can by running a fresh batch with regular water and testing the run off ec and ph before and after.

 

[gaiusmarius]

without a pic this is not so easy, as yellowing leaves is not really very exact and can be any one of many things.

you did answer that your fan was blowing directly at your plant, that can cause leave to dry out. best aim your fan just over the tops of your plants, so the plants get indirect air movement.

also the fact that you are running without meters will not make things easier. you can do that once you know the strain and the ferts and water you are using. at this point it would help to have exact ec and ph readings of both water going in and water coming out.

uploading pics is not hard at all, make an album and then use the import pics button. pics and readings will hasten the correct solution.

adding the ventilation should be your next step, without ventilation your plants can suffer not just from the heat of the lamps accumulating, but also from co2 depletion as they use it all up. without air being exhausted your co2 is not being replenished.

peace out

 

[headband 707]

I concure with Gaiu LOL.. peace out Headband707