H3ad goes Coco

[Carl Carlson]

Greetings. Anyone have any idea what this may be from. It is only happening on the tops and is very yellowish and light green.

If it's happening at the tops only, than it's an immobile nutrient deficiency. From the pics - my guess is possibly iron (Fe).

If I were you, the next step would be to use the NCState Pour Through method to check the pH and EC of the coco. It could be the pH of the coco is too high.

 

[Carl Carlson]

underwatering and/or ph inconsistency(ph shift because of medium drying). if i don't keep my pots watered often, before they even start to dry out, problems like that pop up.

second thoughts would be a mag hungry strain(s) if its isolated to a certain few. but im sure underwatering is the real culprit because once again some strains will be more sensitive and bitchy about the coco drying out

magnesium deficiency would show on the bottom leaves first, as it's a mobile nutrient.

Agree on the possibility of overwatering, or perhaps more precisely - a lack of drainage. more on that in the next reply.

 

[Carl Carlson]

Greetings.
Anyone have any idea what this may be from. It is only happening on the tops and is very yellowish and light green.

You are using the Botanicare square pots right? Are those the one that have only four total drain holes in the bottom? If so, I think you should drill more holes. I prefer those containers for the shape and height, but at the local hydro store, only the 1 gallon (6" x 6") version has a lot of drain holes in the molding. The 7" x 7" and 8" x 8" versions demand to be drilled out.

 

[Carl Carlson]

no such thing as too much water only too little oxygen...

that could be amended to include, too little drainage.

 

[Grat3fulh3ad]

that could be amended to include, too little drainage.

nope.

plants grow in a 5 gallon buckets of oxygenated nute solution, with absolutely zero drainage.

 

[Carl Carlson]

nope.

plants grow in a 5 gallon buckets of oxygenated nute solution, with absolutely zero drainage.

What makes you think I was talking about a plant grown in straight oxygenated nute solution? It would make zero sense if I was.

edit: what may seem like common sense to you or I, isn't necessarily to someone else, especially a new grower.

 

[thegonz1]

nope.

plants grow in a 5 gallon buckets of oxygenated nute solution, with absolutely zero drainage.

Please correct me if I'm wrong. When growing in coco, without air stones, if there is too little drainage (ie. no holes in the pot) and you fill your pot with water, the water has no way of escaping the pot other than evaporation and uptake There is no room in the medium for oxygen. So it is correct to say that there is a such thing as too much water when no oxygen is supplemented. The water is occupying the air space. This would be caused by too little drainage, right?

I wouldn't want my posts ammended by others either, but what Carl said is true, right?

 

[Carl Carlson]

I wouldn't want my posts ammended by others either, but what Carl said is true, right?

I'm not trying to step on anybody's toes here. Let me say this - H3ad's 6/9 is a brilliant formula for coco growing - I've been running something similar with FNB and loved it, but just switched to the true two-part version drawing inspiration from both this thread and Rezdog's.

I was just pointing out something about container drainage that might not be obvious to new growers. That is all.

 

[Grat3fulh3ad]

Please correct me if I'm wrong. When growing in coco, without air stones, if there is too little drainage (ie. no holes in the pot) and you fill your pot with water, the water has no way of escaping the pot other than evaporation and uptake There is no room in the medium for oxygen. So it is correct to say that there is a such thing as too much water when no oxygen is supplemented. The water is occupying the air space. This would be caused by too little drainage, right?

I wouldn't want my posts ammended by others either, but what Carl said is true, right?

No the problem is ultimately caused by lack of oxygen, exactly like I said.

There is no need to list every different scenario which could cause a low oxygen situation. Your statement was not incorrect, just unnecessary... Too little drainage can cause too little oxygen, but my statement still was 100% correct without your addition.

But of course... lack of drainage is one of the situations that can cause lo oxygen.

I'm not saying your statement was wrong concerning too little drainage causing under-oxygenation, I'm saying it has no place as an addendum to my statement.


There is NO SUCH THING as too much water, only too little oxygen in the water. If there were any such thing as too much water DWC would not work.

 

[Thundurkel]

Hey bro when you say you use Micro up to the first 1/3 of flowering would that be the end of week 3 running 63 days? I'm at day 23 of flower and I'm pretty sure now is when I drop my Micro I just want to MAKE sure.. Thanks again I can TELL my plants like this profile over what I had going on with PBP!!

 

[Grat3fulh3ad]

yeah, you can drop the micro safely

 

[Grat3fulh3ad]

I will say it so there is no confusion...

Unless you are growing in DWC, you will ALWAYS need to make sure your media has adequate drainage. Stagnant water kills plants.

 

[slowandeasy]

Pre-soaked some coco in 5.6 1/2 strength nutes last night, then took 2 seeds and put them in small cups cut down with 2 holes in the bottom. About 18 hours later, one of the seeds has cracked already!! So, hopefully by tomorrow they both will be cracked and on there way. I tried germing some in perlite last week, it worked...but they dont seem to be doing much....so I transplanted 2 of them to coco and put one in a bubbler. Hopefully they take off now. I think the perlite was too moist.

So, when you start your seeds in egg cartons about how often do you have to water? About how long do you usually keep them in the egg cartons? My cups are a lil bigger, so I am sure they will retain a tad more moisture. I do not want to overwater them, since they are seedlings. Thanks for the help!!

 

[robertmarley]

1/2 strength? thats probably way to much for seedlings

 

[Grat3fulh3ad]

You should be on track... don't add any more nute to the coco until they begin growing real leaves. You probably won't need to water until growth starts, unless the cups seem to be drying out. Damp coco for seedlings, damper coco for plants.

 

[slowandeasy]

You should be on track... don't add any more nute to the coco until they begin growing real leaves. You probably won't need to water until growth starts, unless the cups seem to be drying out. Damp coco for seedlings, damper coco for plants.

Thanks H3ad! The very top of the coco was dried out this morning on one of them...so I moistend it up. I will just water with pH adjusted water if they need any. I was supposed to soak in 1/2 strength nutes right?

They both have cracked, and one of them will prolly be above ground by tomorrow. Thanks for the help!!

 

[Carl Carlson]

I'm not saying your statement was wrong concerning too little drainage causing under-oxygenation, I'm saying it has no place as an addendum to my statement.

In other words, in your opinion it is nearly impossible that someone completely new to growing, would not know all about the important of drainage in containers.

I will say it so there is no confusion...

Unless you are growing in DWC, you will ALWAYS need to make sure your media has adequate drainage. Stagnant water kills plants.

I thought there was no need to amend your statement?

That quote from Sam Skunkman in your signature?

'Winning arguments is not the same as knowing the true facts and the science behind them. At least that's how I see it.' -- Sam Skunkman

You might try reading it every once in a while.

Have a nice life. Thread now un-tagged.

 

[Grat3fulh3ad]

So you find it impossible that someone completely new to growing, might not know the important of drainage in containers?

NOPE... but that fact is completely irrelevant to my assertion... WTF do you think this is? an thread to teach noobs everything they need to know to grow in coco? well you're wrong. Perhaps you should read, before you ASSume. This thread is to show what I do, not to provide complete instructions concerning every aspect of growing... you need to drop the 'tude, kid.

I DO CLEARLY STATE REPEATEDLY to have some runoff when you water... Runoff is pretty impossible without drainage... My statement needed no amending.

I thought there was no need to amend your statement?

I did not amend my statement. I added a statement to address a completely separate topic which was causing you confusion.

If you are causing under-oxygenation by not providing drainage, the under-oxygenation is still the issue.

There are also many other ways you can cause under-oxygenation... but I was never addressing that topic here.

That quote from Sam Skunkman in your signature?



You might try reading it every once in a while.

Have a nice life.

I do... sorry you're confused.

Have a nice life yourself, and try to learn some sense of tact and propriety.

 

[Carl Carlson]

WTF do you think this is? an thread to teach noobs everything they need to know to grow in coco? well you're wrong.

I couldn't not respond to this. You still don't get it, which is really ironic.

Son, you might not have setup the thread with the idea in mind that it will be used to teach noobs everything they need to know to grow in coco, but anyone that has read the thread from cover to cover, knows for a fact that thanks to YOU, it is what the thread evolved into.

 

[slowandeasy]

Hey H3ad,
When you said to pre-treat the coco with nutes...you meant 1/2 strength right? Hope so, cause that is what I did. I will only use water to moisten up if needed until the true leaves start growing. Thanks again!!