Can indenify the def?

[SkunkyDemon]

Hey all!
Well I have some sick girls, as you can see by the pics one strain suffered a different problem , I believe that its all from the same issue. For about 2 weeks or so the temp was 50-55 degees. I looked up in my grow bible and it says cold might have done it. A little info on the grow. Soil, GH Nova nuts and their supplements. All are growing under CFL's. I know that part of the problem is they need transplanting so some of it has to be that. Anyways all the help would be great! Thanks all.
Peace

 

[big twinn]

looks like phosphorus being locked out due to the cold temp....my source:
https://www.icmag.com/ic/showthread.php?t=11688

im sure others will chime in as well

 

[SumDumGuy]

looks like phosphorus being locked out due to the cold temp....my source:
https://www.icmag.com/ic/showthread.php?t=11688

im sure others will chime in as well

Nice brother - Spot On! Once their temps stabilize the OP should see nothing but lush new growth.

 

[MagicChef]

Not trying to jack your thread but just need some help. Looks like rust but my enviroment isnt bad..
.
https://www.icmag.com/ic/picture.php?albumid=26232&pictureid=592112

 

[SumDumGuy]

Not trying to jack your thread but just need some help. Looks like rust but my enviroment isnt bad..
.
https://www.icmag.com/ic/picture.php?albumid=26232&pictureid=592112

MagicChef you have 2 issues here.. Phos/Cal. Can you please open up a thread and we can dive into your issue further . Please answer the questionnaire to the best of your ability as well brother .

 

[SkunkyDemon]

Thanks for the info. The temps have been 70-75 for a week or so. Im hoping that they turn around. They seem to have stoped growing or slowed way down. So you all think that it will fix it self now that I have a heater in there. Thanks for all the help!
Peace

 

[SumDumGuy]

.

 

[MagicChef]

How long has this problem been going on? All grow
What STRAIN are you growing? Lemon Skunk/ AMS
What was the establishing technique? (seed or clone?) Seed
What is the age of your plants? 3 weeks-1 month
How long have they been in the soil mixture they are in now? 10 days
Were they in the same mixture when they were seedlings/smaller plant? If not, what mixture were they in before? Same
How Tall are the plants? 4-6 inches
What PHASE (seedling, vegetative or flower) are the plants in? Seedlings have purpling, others in veg have spots
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot) .5 gallon maybe 1 per
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Sunshine mix #4 with a little extra perlite
What brand Nutrient's are you using? Botanicare grow and liquid karma
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* Seedling dosage 1 tsp pergalon each, and veg 1 tbs per gallon each.
How often are you feeding? From 2 weeks old I fed the seedling dosage and moved up to veg dosage last few waters.
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)Only veg for now
What is the TDS/EC/PPM of your nutrients used? Botanicare Progrow is 3-2-4 with a calcium 1% and magnesium .5% liquid Karma not quite sure right now, get back to ya...Its kelp.
What is the pH of the "RUN-OFF"? Yikes! havent checked.
How often are you testing pH/ppm/EC/TDS? Every time
What method of pH test was administered? Using Strips? pH pen? Digital meter
How often are you watering? like every 3 -4 days
When was your last feeding and how often are you feeding? Yesterday, every water.
What size bulb are you using? Seedlings in 100w cfl ... 3 weeks to a month with a 250w MH
How old is your bulbs? 1 year old, never used. cfls are brand new 65oo k cool white
What is the distance to the canopy?
seedlings 8 inches'ish

In the 250w mh side their about 10 -12 inches
What is your RH Factor? (Relative Humidity)30-40% usually sometimes 50-55%
What is the canopy temperature? 69-74
What is the Day/Night Temp? (Include fluctuation range)24/0 lights on
What is the current Air Flow? (cfm etc.) Vortex 4'' 177cfm with controller
Tell us about your ventilation, intake exhaust and when its running and not running ? Cabinet grow... externally mounted vortex pulls air through utility room( s et up for scrubber but not packed with carbon right now) from both veg and larger Flower side. Passive intakes on bottom provide good airflow . Internally just a 80 mm PC fan for breeze




Is the fan blowing directly at plants?No
Is the grow substrate constantly wet or moist? Usually, Ive been letting it completely dry out last 2 times. Guilty though.
Is your water HARD or SOFT? Not sure, pretty sure soft?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
If using tap water, what is the ppm/EC/TDS of the water right out of the tap?(Only if you have a tds pen)
If using RO,Distilled,mineral water, what is the ppm/EC/TDS without any additives?(Only if you have a tds pen)
Are you using water from a water softener? Not sure
Has plant been recently pruned, cloned or pinched? Older ones topped a week ago
Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's?no