Slow growth and root problems ????

[GreenhouseBobby]

BBQ thanks man.
Well ther in the 11 liter pots and there is roots everywhere.
So what do you think I should do my friend ?
Let the coco medium dry out a bit before I water again ?
Do you think I should flush the medium ?
Can i ask what amount of nutes you feed ur plants ?
I will check the alg a mic what is it ? And do you mean feed the plants this stuff from bio bizz every seven days ?
Thanks for your reply as im really worrying bout my babies

 

[BBQ]

I think 11L pots for cuts is very large..

Your plants look ok size wise now and the roots are coming out the bottom but just because they come out the bottom doesnt mean they are all over the pots. My root growth rates are much higher when the coco isnt wet all the time so wait till they dry out a little and then water again..when you lift the pot you can see through the bottom holes how wet the coco still is. If I was you I wouldn't flush them...they don't look like they have too much nutes!

I use the canna coco A+B at 20ml per 10 L A and 20ml per 10L B. gives me a ec reading of around 1.4 . When they are about double the size of yours I give the full dose 40ml per 10L. The alg-a-mic has sea kelp, amino acids, vegetable extracks and trace elements in it and is a great source for Ca and Mg. It doesnt raise the EC. You can use it as a foliar spray aswell. When you give it to the plants you can see the next day how much they love it. I only use the alg-a-mic once a week and there are many other growers here who love this stuff. It is pretty expensive though.

Don't stress yourself too much...your plants look very good..a little light but other then that they look fine. Buy some alg-a-mic and feed them this stuff plus a foliar spray and you wills ee that they turn darker.

BBQ

 

[GreenhouseBobby]

BBQ your a start my friend.
I will wait untill there dry and give them 10 ml of each in my 5 liter water jar.
Il go grab some of that stuff.
Also do you use the canna canazhmys ?

 

[BBQ]

I use cannazym but only in flower because the first weeks of veg there is not much root matter to decompose or salt buildup in the coco. I wouldn't flush or use cannazym if I were you. Do you have rhizotonic by any chance since you have everything from canna?

The curling of leaves can be heat stress but if your temps are 25 degrees it can not be that...only if the bulb is too close to the tops...but your planst dont look like they are burned.

What water do you use? I'm asking because I see spring water bottles infront of your grow tent.

 

[GreenhouseBobby]

I use tap water my friend.
I drink lots of water. lol
Aghh I have been using the cannazhmys maybe this could be a problem.
Yeh i have rhizatonic.
I think it could be a mg deficiency as apprantly the leafs pray for it.
The plant that is curling is the smallest plant lowest away from the light all the others are fine.

Thanks so much BBQ

 

[BBQ]

I would give them a rhizotonic foliar spray..get some alg-a-mic and your golden.

Happy growing

BBQ

 

[GreenhouseBobby]

Ok so foliar spray with the rhizatonic ?
Is that not for the roots ?

Thanks man

 

[BBQ]

It's mainly for the roots but an exellent foliar spray aswell.

 

[GreenhouseBobby]

full strength or half strength solution ph 5.8 would u say ?
Really do appricate all ur help man

 

[2Lazy]

The Cation Exchange Capacity of coco requires very high levels of calcium. Also, Canna is a little low on micro-nutrients like Iron, Boron, Copper, sulfur, etc. These need to be in low levels but do need to be present for healthy cellular growth.

My immediate observation is that you're using CannaZym too early in the growth of the plants. These enzymes break down dead roots, and with your plants being so young they haven't had the opportunity for that Zym to be useful. If anything, rhizotonic would have been useful.

My second observation is that you should supplement calcium and magnesium and iron to your plants. Easily done using botanicare cal-mag plus. I used 15ml Canna A, 15ml Canna B, and 15ml Cal-Mag+ per gallon through veg with SPECTACULAR results. The light green color you are seeing isn't a N problem, it's an iron problem. Look up iron deficiencies and see if that might be your issue.

My third observation is that you're using tap water, which I tried and it doesn't work, period. Some people who are on good well water, or a nice local watershed, don't have this issue. But anyone who uses treated piss (which they later call tap water) has issues with their plants. If you live in or near a city with water reclamation / sewage treatment, (most cities with more than 20,000 residents) then the problem can also be your water.

Reverse osmosis, micro-filtered, UV treated water can be purchased at any of those machine dispensers for about 25 cents per gallon. I joined a water club when I bought my 5 gallon jugs and pay about 15 cents per gallon for my perfectly clean water. This one change totally change the dynamics and rates of growth. Of all the changes I can suggest, getting off tap and on to RO water could be the only change you need to make.

Lastly I suggest dropping the $40 or so for a ph tester and working on getting your pH in the right range. If your water is starting around 8 then I can pretty much guarantee that pH is an issue with this grow. I find that Coco self-buffers the pH in the media, so I run about a 5.5 pH in my coco system with very good results.

As far as watering goes I treat it very much like soil. Coco does absorb much more moisture, and oxygen so it can take longer to dry out than soil might. When I started my plants in coco I was in your same boat, I got distraught and just stopped checking on them. I allowed the coco to go completely dry after the first feeding. 3 or 4 days after the dry feeding suddenly they just exploded.

Change your water, get some cal-mag+, stop using cannazym for a bit, and allow the coco to dry out before feeding again (lift the planter to check the weight). This will solve any issue you've had.

 

[GreenhouseBobby]

Cheers mate il read through that when i get home.
I do own a PH meter already.

 

[GreenhouseBobby]

thanks for all your advice guys do you no if this algamic contains iron people in the coco foum think its an iron def.
Im getting so confused.
I will get some of this on monday.

 

[OrganicMonkey]

I think they look just fine, it seems that some plants are larger and your feeding plants of different growth rates. What isn't enough for those large plants to look ideal, isn't enough for that small one.

It's always good to keep some ph water, so you can dilute a mixture for one plant. The large ones look good for their age, they seem to have a little bit of heat light stress from the lack of nutrients.

I wouldn't go adding things and complicating, what is probably a tiny problem that I mentioned.

 

[GreenhouseBobby]

Mate there is defiantly something wrong they are the wrong color complete different to my last grow.

I think it is iron def the problem is all the the deficiencies look quite similar.

 

[bud lover]

i think 2lazy was right in what he was saying your using the canzime to early try the rhyzatonic for a while

 

[GreenhouseBobby]

Yeh have always used rhizatonic i have stopped the canazhmys.
Regardless the plants are the wrong color.
Cheers guys

 

[herbal essences]

did you lower your ph at all try going to 5.5 maybe

 

[DSDFreak]

Whats your PH? I could be either a deficiency/toxicity of calcium/sulfur.. besides paler leaves and slow growth, symptoms include purpling petioles and stems.
If your tap water is around 150ppm you can definitely use it.. if tis higher like something.. then use R/O or distilled water with calmag and full nutrient supplements.

 

[GreenhouseBobby]

Hello guys just to let you no the plants are getting a dark green color to them. Hopefully this will continue and everything will be ok.
I will upload pics / vids later