Need some help im coco

[Aqua Man]

Yes. Sealed room. Pretty tight. Right now it's at 680 naturally

Yeah 600-800 when they get a bit more mass I jump to 1200 for usually last week of veg and through flower until after the swell is done then drop back to like 600-800 since not much photosynthesis going on after that.

 

[NewGrowerer]

Not sure how accurate the vpd is, but at this room temp and humidity, that's my vpd level. Is that okay? I know u said from .8 to 1

 

[Aqua Man]

Not sure how accurate the vpd is, but at this room temp and humidity, that's my vpd level. Is that okay? I know u said from .8 to 1

So 77 under led likely about 72-73f leaf temls and humidity 58. 0.84 KPA sounds about right for ya there. Can go a bit warmer on the room like 80-82 and will help increase growth a bit.

 

[Aqua Man]

That model of VPD does not take into account leaf temp difference.

Have a read here.

VPD (vapor pressure deficit)

Ok i was gonna sit down and write out a whole article but i have been lazy so instead instead I'm going to copy paste because im lazy. This is not my work so let start. You may find this very long but its worth the read. Some may want to skip ahead. I have added here and there to what i feel is...

www.thcfarmer.com

 

[NewGrowerer]

So 77 under led likely about 72-73f leaf temls and humidity 58. 0.84 KPA sounds about right for ya there. Can go a bit warmer on the room like 80-82 and will help increase growth a bit.

Yeah. I'll get a better reading tonight when the lights come back on see how accurate it is.

I'll be good at an 81F ?? For how long?

 

[Aqua Man]

Yeah. I'll get a better reading tonight when the lights come back on see how accurate it is.

I'll be good at an 81F ?? For how long?

For lights on thats fine then lights out about 10f cooler if ya can. You will see a humidity spike at lights out so just keep an eye out it doesn't get to high for the couple hrs after lights out

 

[NewGrowerer]

For lights on thats fine then lights out about 10f cooler if ya can. You will see a humidity spike at lights out so just keep an eye out it doesn't get to high for the couple hrs after lights out

Sounds good lights are off now I'm at
72F
63% RH

 

[NewGrowerer]

Yes use RO or distilled water in the humidifier.

So what i would suggest is. Mixing 400ppm nutrient solution and run 3 gal of it through each pot first thing after lights on. Then go back and feel 750ml half way through lights on and see how much runoff you get. If you get enough then you know you need to water at lights kn and halfway through the lights on. If you don't get enough feed more until you get runoff and the next day try 3 feeds at 750ml of 600-800ppm nutrient solution and see if you get the runoff.

The 3 gal flush will help rebalance the media and then just carry on feeding 750ml of nutrient solution each feed as many times a day as it takes to get that 10% runoff each time.

Stupid question but I am having a brain fast.

I have a 60 gallon res. My PPM from tap is at 160, EC 0.2

To flush at 400 PPM, how much of my part a, part b, rizo, can canna should I put in ml/per gallon?

 

[Aqua Man]

Stupid question but I am having a brain fast.

I have a 60 gallon res. My PPM from tap is at 160, EC 0.2

To flush at 400 PPM, how much of my part a, part b, rizo, can canna should I put in ml/per gallon?

So I would add the recommended dose for 20 gal. Of each. Should gavie ya 400-600ish ppm

 

[NewGrowerer]

So I would add the recommended dose for 20 gal. Of each. Should gavie ya 400-600ish ppm

Ok. And add calmag+ ? How much?

 

[Aqua Man]

Ok. And add calmag+ ? How much?

No cal mag if using tap. If anything 1 gram per gal of mag sulfate (epsom salt)

 

[NewGrowerer]

No cal mag if using tap. If anything 1 gram per gal of mag sulfate (epsom salt)

Ok, I got some of that. Mixing my res up right now. They wake up at 1am.
I been mixing calmag with my filter tap water lol was that an issue?

 

[Aqua Man]

Ok, I got some of that. Mixing my res up right now. They wake up at 1am.
I been mixing calmag with my filter tap water lol was that an issue?

Maybe maybe not but because the tap will be high in calcium you dont need to add more calcium only magnesium.

 

[NewGrowerer]

No cal mag if using tap. If anything 1 gram per gal of mag sulfate (epsom salt)

Have a question in regards to the other room and this room also since these are clones from my other room

I am in week 6 of flower going in 7 tomorrow. I have powder mildew on the leafs. Is this safe to spray? What are the pros and cons of this if u have any experience with it?

 

[JSH1973]

i never water until run off, ever, never had, never will, only been growing in coco past 10+ years constantly though, lol.
imnice

Glad it works out for you but you are going against all rules/advice growing in Coco by doing that, fine if you have 10 years experience but I would not recommend it to anyone new to coco.

 

[NewGrowerer]

Update:

At 1am they woke up, flushed 4 gallon each pot.
PPM: 360
EC: 0.5
PH: 5.9
Water temp: 68

9 hour later 1pm. Feed again 750ml bucket.
PPM: 800
EC: 1.1
Ph: 5.8
Water temp: 68

Check right after I watered first bucket, seem to get about 20% run off. I watered every pot there after and was getting fast run off, about 20% (hard for me.to collect run off. Need to figure a way to collect each bucket)

So this means that I need to water lights on, and 9 hour later?

---------

Also check VPD. Seem to be getting wide range of numbers.
Room temp: 78-80
Leaf temp: 78-80 (stays at 80F if room is 80F)
RH: 62-64
VPD: 1.14

If I drop the temp
Room temp: 75-77F
Leaf temp: 70-74F
RH: 61-64

I'm a little confused.
-Does this need to be an exact number in regards to room temperature, Leaf temperature, relative humidity? My room temp will Flux about 2 degree some my set point, along with my room humidity.
-should I dial it in exactly or give it ome wiggle room

 

[Aqua Man]

Update:

At 1am they woke up, flushed 4 gallon each pot.
PPM: 360
EC: 0.5
PH: 5.9
Water temp: 68

9 hour later 1pm. Feed again 750ml bucket.
PPM: 800
EC: 1.1
Ph: 5.8
Water temp: 68

Check right after I watered first bucket, seem to get about 20% run off. I watered every pot there after and was getting fast run off, about 20% (hard for me.to collect run off. Need to figure a way to collect each bucket)

So this means that I need to water lights on, and 9 hour later?

---------

Also check VPD. Seem to be getting wide range of numbers.
Room temp: 78-80
Leaf temp: 78-80 (stays at 80F if room is 80F)
RH: 62-64
VPD: 1.14

If I drop the temp
Room temp: 75-77F
Leaf temp: 70-74F
RH: 61-64

I'm a little confused.
-Does this need to be an exact number in regards to room temperature, Leaf temperature, relative humidity? My room temp will Flux about 2 degree some my set point, along with my room humidity.
-should I dial it in exactly or give it ome wiggle room

Sounds like they could use some air flow. What do you have for circulation?

VPD is a guide. If your close your good.

Yes lights on and 9 hrs later.

 

[NewGrowerer]

Sounds like they could use some air flow. What do you have for circulation?

VPD is a guide. If your close your good.

Yes lights on and 9 hrs later.

I have for isolating fans up above blowing and a downward angle and then I have to floor fans running