First Time in Coco-Coir ( questions )

mkultra999

mkultra999

Member
So sup growers, I got few questions to ask about coco, I am switching from organics to coco coir (not my thing now that I know)
Basically I did a few runs about 4 in total and the last 3 where bad buds like full of nutes.

And I said I am gonna give coco a chance
So right away am going to ask some questions,
if any help or tips can come my way and hope that helps me and each other thanks in advanced.

Q:
1: feeding
If I want to grow more weeks in veg do I feed 100ppm more every week,
example 6 week veg is 650ppm and next week it is 750ppm and so up?

2: watering in a big pot (5 galon)
First I will spray R.O 5.8ph for germination in coco directly and after it sprouts I wil be feed spraying about 20ml (150ppm) (lights on) then I second spray 20ml 0-10ppm just R.O (10h after lights on)
till I can get a run-off? Is it a good thing or is there any better watering practices remeber that this is in a 5 galon pot.

3: run-off / watering
When can I get a run-off in a bigger pot (5 galon)?
/
Do I keep the coco wet, damp, or can is there a sweet spot?
 
MickFoster

MickFoster

Well-Known Member
I answered your thread on GC.
Start in solo cups.
Start feeding daily to run off starting around 3 days from sprout.
Never give plain water and never let the coco dry out.
 
CraigMk

CraigMk

Well-Known Member
MickFoster said:
I answered your thread on GC.
Start in solo cups.
Start feeding daily to run off starting around 3 days from sprout.
Never give plain water and never let the coco dry out.
Click to expand...
Sorry to jump in but at the start of my coco growing process and I have seeds that are 3 days old and you say I should be starting feeding with say 20%run off ? Do you have a go to chart for feeding? Thanks ppl
 
secretmicrogrow420

secretmicrogrow420

Well-Known Member
CraigMk said:
Sorry to jump in but at the start of my coco growing process and I have seeds that are 3 days old and you say I should be starting feeding with say 20%run off ? Do you have a go to chart for feeding? Thanks ppl
Click to expand...
in the seedling stage i feed at around 200ppm.
but the last grow i started my plants in coco and all i had was a micro grow bloom 3 part base and i was feeding at around 300ppm with no signs of burn.
good luck with your grow boss man
 
MickFoster

MickFoster

Well-Known Member
CraigMk said:
Sorry to jump in but at the start of my coco growing process and I have seeds that are 3 days old and you say I should be starting feeding with say 20%run off ? Do you have a go to chart for feeding? Thanks ppl
Click to expand...
I don't have a chart for feeding.......I use GH Flora Series and follow the bottle recommendation at a weaker solution.
I start with a 50/50 coco/perlite mix........and after 3 to 4 days I start feeding daily.
They're under a t5 light fixture.
1st pic is sprout day.
2nd pic is 1 week from sprout.
3rd pic is 2 weeks from sprout.
sprout day.jpg1 week.jpg2 weeks - 2023.jpg
I apologize to the OP for getting side tracked........hopefully this can be helpful to him/her.
 
T

Triplefastaction

Well-Known Member
Q1- can’t answer, depends on your plant. But I feed the same ppm from about 2 weeks til I flip

Q2- strongly recommend you don’t use a 5g pot unless you intend to grow a 12’+ tall plant. 2g is plenty big for coco. Big pot will only bring big problems, especially as it relates to watering.

Q3 - see above kinda. Big pot, small plant = issues. But in coco, you should have some runoff daily once the roots fill out the pot. But again, by the time you fill a 5g pot you are gonna have a 10’ tall plant…
NEVER let your coco go dry. Daily feeding (multiple times per day preferred) daily dryback, but never dry.

good luck!
 
T

trainer

Active Member
Hello tripplefastaction go the way Mick Foster DOeS. Perhaps Use 70 percent coco 30 perlite .
 
Last edited:
1

1212ham

Well-Known Member
mkultra999 said:
So sup growers, I got few questions to ask about coco, I am switching from organics to coco coir (not my thing now that I know)
Basically I did a few runs about 4 in total and the last 3 where bad buds like full of nutes.

And I said I am gonna give coco a chance
So right away am going to ask some questions,
if any help or tips can come my way and hope that helps me and each other thanks in advanced.

Q:
1: feeding
If I want to grow more weeks in veg do I feed 100ppm more every week,
example 6 week veg is 650ppm and next week it is 750ppm and so up?

2: watering in a big pot (5 galon)
First I will spray R.O 5.8ph for germination in coco directly and after it sprouts I wil be feed spraying about 20ml (150ppm) (lights on) then I second spray 20ml 0-10ppm just R.O (10h after lights on)
till I can get a run-off? Is it a good thing or is there any better watering practices remeber that this is in a 5 galon pot.

3: run-off / watering
When can I get a run-off in a bigger pot (5 galon)?
/
Do I keep the coco wet, damp, or can is there a sweet spot?
Click to expand...
Just an FYI, measuring and adjusting the ph of RO and distilled is an exercise in futility. PH is the ratio of positive ions to negative ions, but RO and distilled have almost no ions. In simple terms it has almost no ph or extremely week ph.

A couple examples, I added ONE DROP of ph down to a gallon of distilled and it set the ph to 4. Take a gallon of a nutrient mix and add a gallon of RO, it will have almost zero effect on the ph.
The bottom line, measure ph after all nutrients are added.
 
L

Lou66

Well-Known Member
1212ham said:
Just an FYI, measuring and adjusting the ph of RO and distilled is an exercise in futility. PH is the ratio of positive ions to negative ions, but RO and distilled have almost no ions. In simple terms it has almost no ph or extremely week ph.

A couple examples, I added ONE DROP of ph down to a gallon of distilled and it set the ph to 4. Take a gallon of a nutrient mix and add a gallon of RO, it will have almost zero effect on the ph.
The bottom line, measure ph after all nutrients are added.
Click to expand...
What you want to say is that RO has no buffering capacity since there are no salts. pH 4 is always 1e-4 M H+ ions.
With no salt to buffer against pH swing and a little atmospheric CO2 dissolved RO water has usually a pH of 4. But the moment you add acid or base it changes, as the buffering capacity is minimal.
 
1

1212ham

Well-Known Member
Lou66 said:
What you want to say is that RO has no buffering capacity since there are no salts. pH 4 is always 1e-4 M H+ ions.
With no salt to buffer against pH swing and a little atmospheric CO2 dissolved RO water has usually a pH of 4. But the moment you add acid or base it changes, as the buffering capacity is minimal.
Click to expand...
No, I said what I wanted to say. Perhaps you missed "in simple terms".
 
L

Lou66

Well-Known Member
1212ham said:
No, I said what I wanted to say. Perhaps you missed "in simple terms".
Click to expand...
Then you are simply wrong. Everything has a pH, just like everything has a temperature. It can be high or low but not weak or absent.
Also your comment about the effect of fertilizer on pH is wrong. Many lower it and are meant to be mixed with hard water.
 
shnkrmn

shnkrmn

Well-Known Member
mkultra999 said:
So sup growers, I got few questions to ask about coco, I am switching from organics to coco coir (not my thing now that I know)
Basically I did a few runs about 4 in total and the last 3 where bad buds like full of nutes.

And I said I am gonna give coco a chance
So right away am going to ask some questions,
if any help or tips can come my way and hope that helps me and each other thanks in advanced.

Q:
1: feeding
If I want to grow more weeks in veg do I feed 100ppm more every week,
example 6 week veg is 650ppm and next week it is 750ppm and so up?

2: watering in a big pot (5 galon)
First I will spray R.O 5.8ph for germination in coco directly and after it sprouts I wil be feed spraying about 20ml (150ppm) (lights on) then I second spray 20ml 0-10ppm just R.O (10h after lights on)
till I can get a run-off? Is it a good thing or is there any better watering practices remeber that this is in a 5 galon pot.

3: run-off / watering
When can I get a run-off in a bigger pot (5 galon)?
/
Do I keep the coco wet, damp, or can is there a sweet spot?
Click to expand...
 
Douggyfresh420

Douggyfresh420

Well-Known Member
Im so confused. I been slowly jumping into coco growing. I got linked up with this dude that grows absolute fire!! Like some of the best weed ive ever had in coco. He said he only waters all his plants twice a week in coco. The first watering has nutes. The 2nd watering has plain water?!?!?!?!
 
L

Lou66

Well-Known Member
Douggyfresh420 said:
Im so confused. I been slowly jumping into coco growing. I got linked up with this dude that grows absolute fire!! Like some of the best weed ive ever had in coco. He said he only waters all his plants twice a week in coco. The first watering has nutes. The 2nd watering has plain water?!?!?!?!
Click to expand...
Then he's lying or doing 'coco amended soil'.

Drain to waste coco is basically hydroponics. You have an inert medium containing 0 nutrients and add all nutrients with the irrigation water (fertigation). When you give plain water the nutrients are flushed out and the plant is left with nothing. In hydroponics plant react very quickly so one day without nutrients. After three days the deficiency cant be missed.
 
Fangthane

Fangthane

Well-Known Member
Maybe 2 weeks into my first coco run and I'm already fertigating my 4" pots twice a day. They seem to be taking it like champs. As glaringly wasteful as it is, soaking them every day is just much simpler for me than trying to keep track of when I need to water/feed again in soil. Once I can afford to throw some money into rigging up some drainage collection system, have a feeling I'm gonna like coco a lot.
 
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