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How much perlite is too much perlite?

  • Thread starter Thread starter PhoenixFlower
  • Start date Start date Nov 9, 2022
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How much perlite is too much perlite?

PhoenixFlower Nov 9, 2022 41 Replies 15,692 Views
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PhoenixFlower

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#21
Dirtbag said:
That's good stuff on its own, but I've also mixed a little extra chunky perlite into it too. About a gallon of chunky perlite added to every 6 - 8 gallons of promix HP or so is plenty.
But I wouldn't hesitate to use it on its own either. I did for over a decade.
Click to expand...
Is it a good medium for starting seedlings in?
ComfortablyNumb said:
It sounds like you don't have adequate drainage. Standing water in your pot leads to root rot.
How about some pix of your setup, top to bottom?
Click to expand...




All in my closet btw
 
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PhoenixFlower

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#22
Sunasun said:
Pro mix works great, stop over watering during veg so your poor tortured plants can grow roots. This causes a whole shitstorm of fuckery whilst you progress through flowering mistaking their death throes from drowning as various deficiencies and toxicities.
Click to expand...
I would actually wait for the plants to wilt before adding water when they were in veg, so as to make the roots stretch out. I was told it's a beneficial form of stress.
2Bad said:
Yea I find it odd that it's taking 7 days to dry in flower @PhoenixFlower how high do you have your exhaust fan on. If it's taking a week you may want to put a fan facing the pots. Or up your exhaust.
Click to expand...
Not using exhaust fan, I'm running a grow in my closet (I know, stupid idea)
 
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PhoenixFlower

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#23
Also do you guys think these are ready to chop yet?





8 weeks to the day today that I switched to flower
 
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2Bad

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#24
PhoenixFlower said:
I would actually wait for the plants to wilt before adding water when they were in veg, so as to make the roots stretch out. I was told it's a beneficial form of stress.

Not using exhaust fan, I'm running a grow in my closet (I know, stupid idea)
Click to expand...
I've never heard of that. Roots can't grow into dry soil just so you know. And yea then you need more air. Problem solved. No exhaust.
 
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#25
PhoenixFlower said:
Also do you guys think these are ready to chop yet?

View attachment 1301325
View attachment 1301326
View attachment 1301327

8 weeks to the day today that I switched to flower
Click to expand...
Honestly it looks done but it's a personal prefence on the high you want. Got to check trichs.
 
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Sunasun

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#26
PhoenixFlower said:
I would actually wait for the plants to wilt before adding water when they were in veg, so as to make the roots stretch out. I was told it's a beneficial form of stress.

Not using exhaust fan, I'm running a grow in my closet (I know, stupid idea)
Click to expand...
Alright, are you maybe a 1 percenter aka underwaterer? Do you water until your medium is saturated completely? If not, Congrats for you are in an exclusive club.
 
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PhoenixFlower

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#27
2Bad said:
Honestly it looks done but it's a personal prefence on the high you want. Got to check trichs.
Click to expand...
That's thr thing. I have a magnifier that I can do that, but there's one plant where I'm almost CERTAIN the trichs are mostly amber. The other plants? Not so much. It's weird, this one plant (same strain as the other two) grew WAY faster than they did. I can't explain it.
Sunasun said:
Alright, are you maybe a 1 percenter aka underwaterer? Do you water until your medium is saturated completely? If not, Congrats for you are in an exclusive club.
Click to expand...
Not sure what that is. I water until runoff, which usually takes a gallon or so of water. I've been watering less in flower, usually about 3L of water, sometimes 2L of water because I've noticed the plants don't drink as much in flower for some reason.
 
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PhoenixFlower

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#28
2Bad said:
I've never heard of that. Roots can't grow into dry soil just so you know. And yea then you need more air. Problem solved. No exhaust.
Click to expand...
Oh and my closet is a walk in closet, the door is almost always open



I should have adequate air exchange, yes?
 
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ComfortablyNumb

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#29
What are you feeding them?

You need to get them out of the drip pans. The bottom is holding water.
 
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#30
PhoenixFlower said:
Oh and my closet is a walk in closet, the door is almost always open



I should have adequate air exchange, yes?
Click to expand...

I would think not. Exhausts in tents refresh the air like every minute or 2 with negative pressure.
 
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#31
On top of that it increase airflow by a lot
 
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PhoenixFlower

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#32
ComfortablyNumb said:
What are you feeding them?

You need to get them out of the drip pans. The bottom is holding water.
Click to expand...
PROMIX organic granular nutrients, top dressing.

Are you sure? Because sometimes there's some runoff but then the pot reabsorbs the water in about 20mins. If I was to get them out of the drip pans, what do I replace the drip pan with?
 
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#33
PhoenixFlower said:
PROMIX organic granular nutrients, top dressing.

Are you sure? Because sometimes there's some runoff but then the pot reabsorbs the water in about 20mins. If I was to get them out of the drip pans, what do I replace the drip pan with?
Click to expand...
That’s fine you can do that, he just though that there was excess and it was sitting in it
 
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ComfortablyNumb

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#34
PhoenixFlower said:
PROMIX organic granular nutrients, top dressing.

Are you sure? Because sometimes there's some runoff but then the pot reabsorbs the water in about 20mins. If I was to get them out of the drip pans, what do I replace the drip pan with?
Click to expand...
Raise them out of the drip pans and stop watering to runoff. You're wasting all the nutes you give them.
Sitting in the runoff looks like it has caused some issues but since you are at the end, there is no point in resetting the soil.
When you chop them, take pix of the roots and share them with us.
 
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Madbud

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#35
Coarse perlite, big chunks, up to 50/50 with soil.
 
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PhoenixFlower

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#36
ComfortablyNumb said:
Raise them out of the drip pans and stop watering to runoff. You're wasting all the nutes you give them.
Sitting in the runoff looks like it has caused some issues but since you are at the end, there is no point in resetting the soil.
When you chop them, take pix of the roots and share them with us.
Click to expand...
Absolutely, I can do that. Truth is, I've been watering something mightily incorrectly, I remember when I transplanted to the final pot the roots looked BROWN, not white. And I have yet to see any thick roots, I could be wrong tho. I'll dissect everything and take many photos, prob tomorrow
 
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TSD

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#37
PhoenixFlower said:
PROMIX organic granular nutrients, top dressing.

Are you sure? Because sometimes there's some runoff but then the pot reabsorbs the water in about 20mins. If I was to get them out of the drip pans, what do I replace the drip pan with?
Click to expand...
You can just put golf balls or a baking rack above the pan so it can still catch water, just need a bit of air underneath. I think not having an exhaust is probably a big contributing factor to the slow dry time... at least put a two way fan in that doorway for air exchange... I start in a closet and that's what I do.
 
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ComfortablyNumb

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#38
PhoenixFlower said:
Absolutely, I can do that. Truth is, I've been watering something mightily incorrectly, I remember when I transplanted to the final pot the roots looked BROWN, not white. And I have yet to see any thick roots, I could be wrong tho. I'll dissect everything and take many photos, prob tomorrow
Click to expand...
Brown slimy roots (root rot) are caused by improper watering. I would guess that you have a bad case of it.
I also see what looks like light burn.

Before you get your next grow started, lets discuss how you are going to grow and what you need to do to set it up correctly.
 
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ComfortablyNumb

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#39
Your smoke will taste funny but it will still be useable.
 
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PhoenixFlower

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#40
ComfortablyNumb said:
Raise them out of the drip pans and stop watering to runoff. You're wasting all the nutes you give them.
Sitting in the runoff looks like it has caused some issues but since you are at the end, there is no point in resetting the soil.
When you chop them, take pix of the roots and share them with us.
Click to expand...
Sorry it's taken so long to upload, I chopped on Nov 11th and the soil was WAY too wet for me to work with. I just went back to get rid of the soil and it was still incredibly waterlogged. Here are some pics of the roots (I'm exhausted, that was hard work getting those things out of the containers!)








 
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Started Nov 9, 2022
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