First Attempt With Coco - Deficiency?

Looks ok to me....
Just harvested a c-99 from female seeds...What an awesome plant to grow. Get ready to tie the branches up to support the heavy buds at about week 5 of flowering .
All the branches will have long massive cola's and this strain stretched about 2 feet after 6 weeks of veg before she finished. She will always look a little pale green, so don't get a mind set that she is under fed....Good luck.

 

Used cns17 and Liquid Karma as base nutes and added Gravity and Ultra Snowstorm during flowering.
EC was 1.6 during veg and 1.8-2.0 during flowering with no signs of deficiencies and over feeding. Very tolerant strain
Supplemented with cal/mag during veg only.
I fluctuated my ph from 5.5-6.1 so plant uptakes nutes at all ph ranges with 5.8 as the main ph target.
Two weeks before harvest I flushed with Clearex and large amounts of water till the EC of the runoff EC matched the EC going in, then nothing but water and Gravity till harvest. Some molasses(for the carbs)will work in place of Gravity.

Shut down the lights 36 hours to ripen more before chopping. I think 48 hours would be better.
8 weeks to harvest but, think 9 weeks is more in line...

 

She's hungry mate. What EC are you running, and why are you using calmax?
There should be no need to add in additional elements if you're running a good brand of coco and a good brand of nutes, especially at this stage in the plant's life, and by adding it in some of your EC is accounted for by the calmax and not the base nutes which the plant needs.

In other words, keep it simple.

Buy a baby feed for this stage of growth, drop the supplements, and at that stage of life you should be feeding at 1.0-1.2 EC of one part one bottle simple as feck baby food and nothing else. Have a look at the basic coco guide on this page and you'll see exactly what I mean.

 

That's the wrong way to feed mate. Have a look at the basic guide man and that'll show you what to feed and when. 1.0ec to 1.5 is a massive leap at this stage of growth and is not the way you should approach feeding. 0.2 increments are all you should ever need to keep you in line with the plant's needs at any stage of growth.

Coco doesn't need cal or mag supplementation unless the plants show you they do, which in my experience is hardly ever. It's a complete myth that calmag is needed for a healthy grow. If you do want to add it in later on, put it in at 0.2 on top of your base feeds.

If your EC is only 1.0, and some of that is being made up of cal & mag, then that's why your plants are a bit hungry. It's as simple as that.

If you started with a baby feed and fed at 1.0EC, you'd have perfectly healthy plants.
When you add in extra calcium and magnesium - two secondary macro nutes which should be in good supply from any good coco feed - at the expense of the base feed, you just throw it out of whack by taking away what the plant really needs.

It's not that your strain is a particularly heavy feeder; most strains will be on 1.0ec at that age. Like I say, have a look in on that guide and you'll see mine at the same stage and what they look like on 1.0ec of baby feed.

Look up formulex, or an equivalent starter feed, and try and have a bottle of that handy for the early stages of growth.


What's your background (tapwater) ec by the way, and are you including that in your ec values?

 

cal/mag are known issues with coco. Some people never have that issue but, the majority do...Is better to be safe than sorry and supplement with some cal/mag during veg only.
Your right about being cautious not to over feed. It is easier to fix a under feeding problem and less stressful on the plant. I would not go above 1.0 ec until the plant tells you it needs more and then only in small increments to reach a 1.6 ec at some point during veg and 1.8-2.0 during flowering stage.
Your roots are still developing and won't be able to consume all of the nutes and can lead to salt build up and nute burn. The amount of lighting also plays a big role here also.

The C-99 I grew was always showing a pale green and my EC was as high as 2.0 and had a nice yield.
Take a look at these pics(c99/kalishnikova) http://forum.grasscity.com/coco-coir/619985-post-your-coco-pics-42.html. Both plants were grown in auto pots with the same feeding schedule/EC and you can see the difference in the foliage.

 

CF, the deep green of the kalishnikova in those pics is excess nitrogen.

 

It looks like the problems have come and gone. The Epsom foliar has helped if you couldn't tell but the 1.7 EC is pretty strong. I'd recommend a mixture of 7.5ml/g a+b and 10ml/g rhizotonic for the rest of veg if you're using tap water with an EC under 0.4. A product I found to be indispensable in my canna rotation was Botanicare's Liquid Karma, as a kelp extract it is a little pricy, but it contains so much more that will help your plants deal with stress. I don't say this about many products but... I don't know how t works, I don't care how it works, but it does work as advertised. In a land of snake oil products it can be hard to find good stuff sometimes but I, personally, wouldn't use canna again without liquid karma. If everything else has failed and you're looking for a hail Mary in a bottle then this is really the only thing I can suggest in good conscience, if only to keep you from buying something less useful.

The likely cause here is probably a result of regular feedings to a large volume of coco that the roots hadn't hit yet. As you continued to refill this empty area of the coco with elements it retained more and more. Now that the roots have reached these portions of the media which are "hot" you're seeing the results of the excess in the burning of your leafs. It may be that your feeding strength was excessive in the past but fine now, so recommending any major changes is tough to do. By looking at the size of your plants I do think that a 1.3ish EC is probably more appropriate. What I can also suggest is that you alternate full strength and half strength feedings from here on out. Try to get a little extra runoff, like a few hundred ml extra, on the half strength days to make sure you keep the buildup to a minimum. Once the media is rinsed and you get on an alternating schedule you should see a lot of improvement. Add the LIquid Karma and I think you'll be fine through veg.

The transition to flowering. Now that is a different story.

 

Oh. Two weeks into flowering?

Still a 1.3ec running equal amounts of a+b and cannazym. It is probably something like 8ml/g of each. The Canna system is meant to be run as the nutrient calculator on their website dictates. I just find their EC suggestions to be on the upper end.

As I alluded to earlier the transition to flowering, especially the second and third weeks of bloom, can be problematic for many coco growers. The tendency is to continue feeding at the full strength used during vegetative growth. This amount of food is normally too much for a plant transitioning to flowering in coco, especially when considering that the coco has been retaining elements this whole time and maturing.

Really though, all you should need to do is run the canna products at the proper EC with alternating strengths once the buildup is gone. I start at a 1.2ec at the first day of 12/12 and increase my pk levels a little every week to bring the EC up by 0.1. Start by adding more cannazym up to 12ml/g, and when you top out on that you can then start adding in a little pk13/14 to keep the solution moving forwards. By the 6th week of flowering I am running about a 1.8ec.

For your plant at this point a 1.3 to 1.4ec is where to aim and you can bring that up to a 1.5 around the 25th day of flowering.

If you cannot get the Liquid Karma locally then don't worry about it. I find it odd that you cannot get it locally... But I also live in cannabis heaven and there are a solid 5 hydro stores within 10 minutes of me. The reason I suggest it, and nothing else, is because nothing else works as well. The product is very different from the rhizotonic and I think that maybe you could consider adding it to your next canna coco grow and order it online.

 

im not sure if you ever mentioned what brand of coco you are using

shot in the dark, but that may be your problem

im using Canna atm and im loving it

i cant say my plants have "never looked better" cuz they never really looked like shit...... but....... they have a "vibrant" look to them since i switched to canna about a month ago

atm im about 2weeks into flower give or take and im running 12ml of a & b, 2ml rhizotonic, 3ml GO cal/mag and my ec is hanging right around 1.7-1.8

i can post a couple pics if you wanna see em

 

Hey DP, I just want to add a lil bit of advise/tips to what the above posters(all of them)have stated..If in doubt, always (imhe) go back to basics..Don't start trying to correct a problem by adding 'additives' to your mix..It's all about giving the girls a proper diet(NPK) at the proper ratios, along with the rest of the essentials..
As mentioned above, if you give your girls the right diet at proper EC at that stage, they'll respond..However if you mix in non-essential additive(s), that will throw your NPK ratios out-of-wack, then this can/will only hurt your babes..
Once you've dialed them in, then IF you MUST, by all means add them in..But just do it by calculating the base+additives to keep your ratios within correct levels..
You asked about FP(Floralacius+), yes it's a very similar product as LK..So knowing that I'd pick that up locally and not special-order LK for now..Again IF-YOU-MUST..
Good luck!..