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Good coco grow guide, anyone?... anyone?

xxxstr8edgexxx

Active member
Veteran
iM thinkn bout adding air to bottom of my Coco buckets in form of airstones. These are 5gallon buckets and will be half full with water. This should lower the water requirements and effectively become DWC/coco... in Theory, onless someone has beat me to the punch and had success.. please chime in. Thanks in advance, Jesus of Bud landia (SF).
as in bio buckets? theres a whole style of organics on here that does this same sort of thing. i thought it was brilliant. it could be used in a number of different mediums and i could see it rocking coco. its like dwc and coco all in one. i
think you will crush it with this set up.
 
as in bio buckets? theres a whole style of organics on here that does this same sort of thing. i thought it was brilliant. it could be used in a number of different mediums and i could see it rocking coco. its like dwc and coco all in one. i
think you will crush it with this set up.
informative thread
 
S

Saiksonas

canna feed schedules for autoflowering! help!

canna feed schedules for autoflowering! help!

Hi to all of you.I've just started my first grow (5× +Speed and 1x Cheese) in coir under 400hps and I need help about feeding schedules using canna fertilize. I'm sure it can't be same coz my girls only takes 7weeks from seed to harvest. Just started 5th day and had a second feeding with 9.5A and 9.5B + rhizotonic and not so sure when to go to next phase and then how to know when to get to following one. HELP, PLEASE! Here is a pic of my girls, the tallest one is 9cm and the lowest one - 6cm
 

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dude you cant veg under 12/12 at least ive never heard of it. maybee autoflower plants but ive never messed with them so i dont know

Not sure if this has been answered elsewhere or not, but I've seen it mentioned a bunch....

Canna doesn't recommend vegging under 12/12, they consider the two weeks after the flip to 12/12 "vegetative phase I"... the period of the stretch. Which makes perfect sense.
 

The.Cook

Member
Well... they'll "veg" till they're ready to flower :biggrin: or maybe he's talking about gas lantern routine 12-5.5-1-5.5
 

matt11

Member
Best guideline for coco. Big ups to snow crash for posting it. I follow this guide ever since i started running coco, and been killing it ever since. Some stains you got to adjust your ec according cause some are light feeders and heavy feeders, but the guide is pretty much spot on in my opinion.
 

matt11

Member
Shit i forgot to postthe guidehere it is.

Hey Garden Bug. I have what you're looking for.

I don't know why, but for whatever reason people just don't keep track of this stuff (or they refuse to share it). I asked for similar information a time ago and got "run out of town."

I speak in uS/cm. It is a more accurate representation of EC, and if you cut the value in half that would be the Hanna ppm measurement. Also, for beginners in coco, I think that the Botanicare CNS 17 coco/soil system of Grow/Bloom/Ripe is damn near perfect. It's about $10 a quart, $25 a gallon, it has everything you'll need, and it works. Their instructions are a little high ml/gallon wise, but you can always cut them back to about 75% suggested strength and go from there. IMO, there is not an easier and less expensive complete system than CNS 17 Coco/Soil. The addition of a Potassium Silicate (like Pro-Tekt) can be useful as a pH up for this usually acidic system, rather than using GH Potassium Bicarbonate pH+.

For the record, my tap water comes in around 100uS/cm (about 50ppm) so it is pretty clean to begin with. For most growers, if you do not have access to clean water (like if you live in a major metropolitan area with water treatment) then I recommend running Reverse Osmosis filtered water to ensure contaminants (like sodium) are not unbalancing your system.

These nutrient levels are what I consider to be average ballpark. Every strain, and phenotype, is going to have its own "perfect level." These suggestions should be fine for most strains, but you might be able to push more nutrients during weeks 3 and 4 of veg and 4 and 5 of flowering than I suggest. You'll have to determine that as a gardener when you can see what the plants will actually require.

Seedling Stage:
400 to 500 uS/cm
Focus on Cal-Mag, and run a balanced system. You don't want to push just Nitrogen, Phosphorus will help with root development and potassium will balance out the cation exchange. Aim for a 1-1-1 kind of system, the most prevalent element in use at this time should be Calcium

Vegetative Stage:
Week 1: 600uS/cm Maintain the balanced ratio 1-1-1
Week 2: 800uS/cm Increase Nitrogen levels. 2-1-1
Week 3: 1000uS/cm Increase Nitrogen levels, watch for Magnesium shortages. 3-1-1
Week 4: 1200uS/cm Increase Potassium levels 3-1-2

Transition to flowering:
For 2 waterings you'll want to use a more balanced nutrient system and to decrease your Calcium supplementation considerably. If you were using something like GH Micro, or Botanicare Cal-Mag plus at 5ml in veg, this would be the time to cut it back to more like 2ml. Often, after 3-4 weeks in the media the coco achieves the element buffer (or bank) and pushing the continuously high levels of calcium will interrupt the exchange of Magnesium and Potassium during early flowering.

Flowering Stage:
Stretch wk1: 1200uS/cm Maintain vegetative NPK, decreasing Ca, increasing Su+Mag
Stretch wk2: 1200uS/cm Decrease N, increase PK slightly, close to a 3-2-3.
Flower wk3: 1350uS/cm Decrease N more, closer to 2-2-3
Flower wk4: 1450uS/cm Increase Mag and potassium.
Flower wk5: 1600uS/cm Begin PK boosting. 1-2-3
Swell wk6: 1800uS/cm Phosphorus push 1-5-4
Swell wk7: 1600uS/cm cont'd phosphorus push 1-6-4
Ripen wk8: 1400uS/cm very low nitrogen and calcium. 100us/CM extra Epsom Salt and increased K. 1-2-3 again.
Ripen wk9: <500uS/cm flushing. I like to use Fulvic acid for a few days.

Some other things that might help out. I don't like to grow in large containers of coco, I just think it is unnecessary. 8L of coco is plenty. Also, I prefer to amend my coco with aeration material like perlite and GrowStones. I think Roots Organics Coco mix is a fantastic media that you can use much less nutrients on (until the 4th week in the media) and I like to mix a little Botanicare CocoGro in with their mixture because it is a little heavy in perlite when unamended.

When daily waterings start (usually in the 3rd week of flowering for me, but it will vary given planter size and transplant date, etc) I begin to offset my feedings with 1/2 strength waterings. Every other, or sometimes every 2 full strength feedings I follow up with a lower strength watering at a balanced ratio. This will keep buildup a non-issue.

Also, when feeding at higher strength, and especially around the transition phase to flowering, I find that it is VERY important that I maintain at the minimum 33% run off (3L in, 1L out). Measure your runoff EC to determine if you are washing out a lot of buildup. If I use a 1000uS/cm solution and if I get anything more than 1300uS/cm in the runoff then I know that the media is a little over-saturated and this is washing out. In this case I simply continue to rinse the media with the 1000uS/cm solution until the runoff measures within the range I am looking for. Usually, a 1:1 runoff ratio (4L in, 2L out) is all it takes to keep any buildup completely out of the equation.

Here's a nutrient calculator I have put together using a spreadsheet (I made it in openoffice and converted to .xls)

http://www.megaupload.com/?d=EGSYJSW8

Just enter the required information and you are on your way. You will want to measure your ppm levels compared to the predictions and compensate for deviances. Liquid Karma tests about 9x higher than predicted, while Hydroplex tests about 90% of predicted. This calculator requires personalization, but it is setup to predict up to 10 nutrients at a time in a solution. I have mine dialed perfectly when running:
Canna Coco A
Canna Coco B
Cal-Mag Plus
Liquid Karma
Pro-Tekt
CNS 17 Ripe
Hydroplex
Big Bud
Nirvana
Snow Storm Ultra
Bud Candy

This is where these levels, my 2 years of experience, and this calculator have taken me (40 days from 12/12, sorry about the white balance, not burned just glare)
 

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