Please help a newb diagnose...

[knowisking]

How long has this problem been going on? 1 week
What STRAIN are you growing? Monster Cookie & Girl Scouts
What was the establishing technique? (seed or clone?) clone
What is the age of your plants? 12 weeks
How Tall are the plants? 4ft
What PHASE (seedling, vegetative or flower) are the plants in? Veg
What size pots are you using? (Include how many subjects to pot) 10 gallon air pots
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Promix Coco
What brand Nutrient's are you using? Heavy 16
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* complete H16 line
How often are you feeding? 3-4 days
What is the TDS/EC/PPM of your nutrients used? EC 1.0 and under
What is the pH of the "RUN-OFF"? around 6.3ish
How often are you testing pH/ppm/EC/TDS? every other
What method of pH test was administered? Using Strips? pH pen? Blue Lab pen
How often are you watering? every other feed
When was your last feeding and how often are you feeding? March 28
What size bulb are you using? 1 room is 1k HPS, other room mix of MH & HPS 1k
How old is your bulbs? New
What is the distance to the canopy? 36"
What is your RH Factor? (Relative Humidity) 55
What is the canopy temperature? 76
What is the Day/Night Temp? (Include fluctuation range) 10 degrees max
What is the current Air Flow? (cfm etc.) AC
Tell us about your ventilation, intake exhaust and when its running and not running? Somewhat sealed
Is the fan blowing directly at plants? no
Is the grow substrate constantly wet or moist? moist
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? RO
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? no
Has plant been recently pruned, cloned or pinched? yes
Have any pest chemicals been used? If so what and when? no
Are plant's infected with pest's? NONE

 

[knowisking]

I should also add that I did foliar spray using H16 as recommended without pHing so I'm not sure if that could have caused my issue. Any help would be greatly appreciated.

 

[Granger2]

Do you wait to water after containers are noticeably lighter? -granger

 

[knowisking]

Absolutely, I make sure they're dry before I feed/water.

 

[zerocool21]

few things that i didnt see answers to, is the ac blowing directly on to the plant or is it getting diffused before contact. some will say your ph is fine i prefer to keep mine (using promix hp) from 5.8-6.2 havent had issues with that. I dont think thats ur issue. it would be wise to check to make sure its calibrated ec and ph.

i am leaning to overwatered/root issue or ac blowing on the plant. it would also be very wise to check your run off/slurry test to see if there is a buildup as your catching all runoff until its being re absorbed(it looks like).

 

[Hemphrey Bogart]

Absolutely, I make sure they're dry before I feed/water.

I'm not trying to be rude, but why would you do that when you have Coco coir in your mix? Dry Coco is no bueno. Stagger your feed/water sessions so that the substrate stays consistently moist, but not soaked. You could try lighter and more frequent feedings to try to keep the soil moist but not wet.

Your plants look thirsty to me, but I could be wrong.

HB.

 

[theLumberjack]

Looks thirsty to me too. Or as if they are thirsty and its night time... but obviously the lights are on.

 

[knowisking]

few things that i didnt see answers to, is the ac blowing directly on to the plant or is it getting diffused before contact. some will say your ph is fine i prefer to keep mine (using promix hp) from 5.8-6.2 havent had issues with that. I dont think thats ur issue. it would be wise to check to make sure its calibrated ec and ph.

i am leaning to overwatered/root issue or ac blowing on the plant. it would also be very wise to check your run off/slurry test to see if there is a buildup as your catching all runoff until its being re absorbed(it looks like).

Last I talked to Heavy 16 they recommended that I let the ph swing from 6.0 to 7.0 to allow a proper balance. I have since gone back to keeping it around 6.5.

I find it hard to believe it's an over water issue as well. Once again (per heavy 16) there must be a little run off. Roughly 2.5 gallons will give me a little runoff, should I cut back?

I've recalibrated the pH pen and still reads the same. All run off is coming pretty close to 6.5 and EC below 1.0

 

[knowisking]

I'm not trying to be rude, but why would you do that when you have Coco coir in your mix? Dry Coco is no bueno. Stagger your feed/water sessions so that the substrate stays consistently moist, but not soaked. You could try lighter and more frequent feedings to try to keep the soil moist but not wet.

Your plants look thirsty to me, but I could be wrong.

HB.

So I'm confused, is it an over water issue, less water, keep them moist? What's with the purple/red drooping leaves?

 

[moses wellfleet]

I think HB is trying to warn you against salt build up, as soon as coco dries salt crystals form.

You don't treat coco same as soil!

 

[zerocool21]

you have to look and feel the medium to know, over water and under can look similar. here is an easy test/gauge to use. put your hand in the soil after you water and look at the amount that gets stuck to you, when its dry (not bone dry) you will have around half that or so stuck to you.

run off is a safe method for newer guys to make sure things are not building up, its easier for most to just waste a some ferts vs trying to data log what each plant is up taking ect. Keep It Simple Stupid kiss keeps many of us and our plants happy, it will make for a much more pleasant growing experience

the slight purple is just saying is could use a little more mag/epson salt but its nothing to worry about @ that point imo. it would be best for you to work on getting them to perk back up then focus on other areas if you would wish.

another point to watch for is because your using trays for each pot unless your dumping them after each watering your not getting run off as it will be reabsorbed, so if you can not dump the runoff then you will have to keep an eye on what level is coming out as it will tell you if you need to dial back the feeding or more plain waterings in between. just something to think about. should be a good starting point for ya to go off of

 

[knowisking]

you have to look and feel the medium to know, over water and under can look similar. here is an easy test/gauge to use. put your hand in the soil after you water and look at the amount that gets stuck to you, when its dry (not bone dry) you will have around half that or so stuck to you.

run off is a safe method for newer guys to make sure things are not building up, its easier for most to just waste a some ferts vs trying to data log what each plant is up taking ect. Keep It Simple Stupid kiss keeps many of us and our plants happy, it will make for a much more pleasant growing experience

the slight purple is just saying is could use a little more mag/epson salt but its nothing to worry about @ that point imo. it would be best for you to work on getting them to perk back up then focus on other areas if you would wish.

another point to watch for is because your using trays for each pot unless your dumping them after each watering your not getting run off as it will be reabsorbed, so if you can not dump the runoff then you will have to keep an eye on what level is coming out as it will tell you if you need to dial back the feeding or more plain waterings in between. just something to think about. should be a good starting point for ya to go off of

Thanks for all the tips fellas. I currently have them on dollies so this allows for the water to completely drain and no where really to accumulate.

I'm beginning to lean towards too much water going through so I'm going to cut it down to about half.

I didn't use to runoff until I had checked the ppm runoff and it read 3500 - OR! Plants were looking great though but I still questioned myself "this can't be right". I guess after a few weeks of using the runoff technique, it has caught up to the plants and causing my problems.

Tomorrow is a water day so I'll update 48 hours afterwards.