harrychilds
Well-Known Member
@jondamon I'm trying to tell @Bud man 43 That feeding until run off everyday gets you the best results but he won't listen. 
Slight leaf discoloration
- Thread starter harrychilds
- Start date
harrychilds
Well-Known Member
Treesomewanted77
Well-Known Member
You are supposed to keep coco 90% saturated so daily feedings to runoff is best. Not saying you can’t let it dry out some but feeding it daily if not several times daily is best. Take a look at coco for cannabis some good reads over there as well. Those plants look really hungry
harrychilds
Well-Known Member
I agree with everything you said, but there's no way they are hungry. The EC is going in at 1.6 and coming out at 1.8
harrychilds
Well-Known Member
Bud man 43
Well-Known Member
Roots need oxygen as well as water- where there is too much water- not enough oxygen.
ProPheT 216
Well-Known Member
Yea u don't gotta let it dry out, just want the plant to drink some and let air into roots before watering again ideally.
harrychilds
Well-Known Member
When you water until run off everyday, you are bringing in fresh oxygen. All the time you don't feed you are letting it go stagnant inside of the medium.
harrychilds
Well-Known Member
Incorrect dude. When you water everyday in coco you are bringing in a fresh oxygen supply.
Bud man 43
Well-Known Member
I do appreciate your knowledge. This is how we learn.@jondamon I'm trying to tell @Bud man 43 That feeding until run off everyday gets you the best results but he won't listen.
harrychilds
Well-Known Member
Yeah man, like I say. It took me 10 years to admit to myself that feeding everyday in coco gives you the best results.
ProPheT 216
Well-Known Member
Yes you are, but that fresh air dosent last forever. As the plant drinks it let's air flow into soil esp in fabric pots. Water is replaced by air, but you don't have to let the coco crust to accomplish this. I agree with you, I just think the roots gets lots of air in between watering from air replacing water
Bud man 43
Well-Known Member
Also- unless you know the dissolved oxygen content of the water you are using you have no idea if the roots are getting enough oxygen. All water is not the same.
jondamon
Well-Known Member
When you don’t keep coco saturated it can have a tendency of holding onto Calcium and delivering back levels of K due to its CEC. When this happens it can cause a toxic salinity spike in the rootzone which can also send the pH plummeting. Causing issues with uptake, which can result in multicoloured plants very early on in flower when the ultimate goal should be a nice healthy green for as long as possible.
These were 56 days of 12/12 at the time of the pictures.
The plants in the pictures were being fed twice a day at 1.2EC max.
The minimum feeding frequency when plants are established in the coco is daily, with its best performance coming from multiple daily feeds.
The dried buds were harvested at 80days and beyond as I’m still harvesting.
Last edited:
jondamon
Well-Known Member
Unbelievably, coco coir can hold eight to nine times its own weight in water! More importantly, coco coir holds a lot of air, in fact even when saturated it typically still holds around 22% air.
Coco Coir Explained - Best Seed Bank
Coco Coir Explained Best Seed Bank takes a detailed look at the rise and rise of coco coir as a hydroponic growing media
bestseedbank.com
There are other better sources out there than best seed bank but mostly the census is that coco coir retains between 20-30% oxygen even straight after watering.
Billy the Mountain
Well-Known Member
Only in dwc is that a valid concern.
The dissolved oxygen content of the water used in a coco grow is unimportant
Treesomewanted77
Well-Known Member
Sorry wasn’t talking about yours was talking about bud man’s looking hungry.
Bud man 43
Well-Known Member
After reading up more on this topic it is unbelievable the difference in professional opinions- however I think you are more correct than I on this- I think I can attribute my late stage leaves dying to not enough watering. I am going more aggressive on this next
After reading many articles on this it is amazing on the difference in opinions. Seemingly reliable sources go from letting coco dry out 50-70% before watering again to watering/feeding multiple times a day.
I am a believer in learning from my past actions- and experimentations to improve my outcomes. Looking at my past harvests- I do seem to be ending with lots of discolored and dying leaves. I attributed this to the plant “dying”and putting all of its energy into bud production. My buds are nice- but could likely be better.
So I am leaning toward your technique as being the correct route- feeding/ watering every day. I will confirm this with future results.
So are you alternating feeding and flushing- feeding every day and occasionally flushing?
How big are your pots and how much do you need to give it each time to achieve 20% run off? Thanks for your advice
Billy the Mountain
Well-Known Member
Not sure what you used for a source, but coco should be kept close to saturation at all times.After reading up more on this topic it is unbelievable the difference in professional opinions- however I think you are more correct than I on this- I think I can attribute my late stage leaves dying to not enough watering. I am going more aggressive on this next
After reading many articles on this it is amazing on the difference in opinions. Seemingly reliable sources go from letting coco dry out 50-70% before watering again to watering/feeding multiple times a day.
I am a believer in learning from my past actions- and experimentations to improve my outcomes. Looking at my past harvests- I do seem to be ending with lots of discolored and dying leaves. I attributed this to the plant “dying”and putting all of its energy into bud production. My buds are nice- but could likely be better.
So I am leaning toward your technique as being the correct route- feeding/ watering every day. I will confirm this with future results.
So are you alternating feeding and flushing- feeding every day and occasionally flushing?
How big are your pots and how much do you need to give it each time to achieve 20% run off? Thanks for your advice
Anyone claiming a 50-70% dry-back is appropriate for coco is mistaken.
This is not a controversial topic