Cal/Mag and Canna

[berryhill]

Useing Canna Coco A&B only in Botanicare Compressed bocks with no amendments. Well water only at 75ppms/.7 conversion with no cal/mag deficiencies on multiple strains. Maintaining proper ph value should correct any issues you have and would suggest addressing ph before jumpin for cal/mag supplementation. Maintaining ph levels between 5.8 and 6.1 have given nothin but healthy growth for me.

Unless you are running a cal/mag hog strain, maintaining proper ph should drive it nice to the end. Canna Nutes are outstanding in supplying all the plants need. PK 13/14 is a nice boost when properly timed/applied.

 

[flowerbean]

hi is that the ph of your complete mix?5.8/6.1
at what point do you add you pk and at what ratio cheers

 

[Black Ra1n]

You can add some blackstrap to your mix for cal/mag deficiency, packed full of carbs too. Greyskull curling edges could be a sign of heat stress too, what are your temps?

 

[Greyskull]

hey blackrain my veg tems are a steady 74f.... def not heat stress

Thanks for the tip - didn't know heat could do that, too.... HEAT SUCKS!

 

[bootlegskate]

bump for canna coco feed schedules!!!

-Wodey

 

[brainlab]

http://www.canna-uk.com/growguide

 

[dongle69]

I was communicating with Canna a while back when I was testing their products.
Here is what one of the guys told me about my tap water (ec .17 ph 6.7).


Your water source, quite honestly, for CANNA is too clean. I know that sounds funny but our line is built to work with water containing higher amounts of salts and minerals. So if you’re running an RO system, I would add some tap water and try to get in the 200ppm range or a bit higher and you’ll see better results. This is due to our extremely low salt index in all our lines so we need the tap water to make up some of that.


Cal-Mag would seem the way to go given that response.
Weird that Canna doesn't sell their own cal/mag product in the states.

 

[Sweet Inc.]

I've been looking for a decent cal+mag supplement, around these parts the only available ones seem to be Cannas single-nutrient bottles.
1L bottles of calsium and magnesium should last a lifetime, too. My EC is also 0.10-0.15 so it makes sense to aqquire them nutes before my first real coco-run.

 

[JamieShoes]

blimey, my tap water must be FILTHY... it comes out EC 0.5 and pH 7.8

 

[thecarguy]

Dongle hit the nail on the head. Canna is made for European water sources which usually have a reasonable amount of cal and mag.

 

[thecarguy]

And Jamie, don't worry about 0.5 EC. Get it down to 0.4 EC by mixing 4 parts tap water with 1 part distilled, and Canna will work perfectly. In fact, on their nute calc, they allow you to specify a 0.4 EC initial water conductivity.

 

[JamieShoes]

DUDE!

hey thanks man! I somehow missed that on the calculator. I've just set it with a starting EC of 0.5 and all my values changed.... looks like I have a little bit of room to play with :smile:

 

[Yes4Prop215]

i water with straight RO, should i start cutting my water with tap water? sounds weird.


i use GH two part LUCAS with added cal/mag

 

[bootlegskate]

i was using RO water and it did seem like deficiencies were occuring...... gonna go back to tap for a while when grow starts again.

 

[Yes4Prop215]

thats crazy im wondering if my nute deficiencies are from using RO water can this really happen???

 

[Sweet Inc.]

Dongle hit the nail on the head. Canna is made for European water sources which usually have a reasonable amount of cal and mag.

I aint seen over 0.25EC in this part of Europe. Water purity is defined by the source, wich differs pretty much from city to city.
We get pretty soft water in my town, I prefer soft water nutes. (Like GHE has a soft and hard water option for micro)
I'm guessing Canna doesn't wanna put in too much cal(&mag) beacause some places have a really friggin high calsium amounts, boil the water and there's a white layer of calsium on top.

 

[ChaosCatalunya]

Dongle hit the nail on the head. Canna is made for European water sources which usually have a reasonable amount of cal and mag.

AHA... we may finaly be nearing the truth !

I use Cana A+B and have never had any problems [London tap, Spanish well] but a freind in [Spanish] town has problems due to some shitty local water. I am planning to 'fix' it by using a Brita water filter [carbon] thanks to a tip from the guys in the Soil forum. Basically, it tastes better, has lower EC and lower Ph, so may well be a better starting point for him. I use it on my babies as well and they seem really happy.

I have never used CalMag, nor ever needed to, before I read carguy & dongle's input I thought RO & CalMag was an internet fad, now I understand the water is different in the Americas.

I spoke to the head of GHE about RO, as people here had made me wonder about giving it a go, specifically the concept that you remove the crap [EC 7/8] and make all of your feed's EC just hydro nutrient. He said this is not the case, as you end up putting pretty much what you took out back in, at great expense and with obvious added risks of complication, getting it wrong, for no gain..... and that the entire product is specifically developed to work with with tap water.

GHE, Canna, Hydrotops & Growth Technology all make great feeds for Europe and our typical Hard Water, but, what holds true for us is not the same for all the Americans.

 

[bootlegskate]

there are trace elements that are removed in RO water that the girls actually need, like some of the guys are saying, canna doesnt put high amounts of these nutrients in their products. my tap EC is .7

 

[tokinsmokin]

I was communicating with Canna a while back when I was testing their products.
Here is what one of the guys told me about my tap water (ec .17 ph 6.7).


Your water source, quite honestly, for CANNA is too clean. I know that sounds funny but our line is built to work with water containing higher amounts of salts and minerals. So if you’re running an RO system, I would add some tap water and try to get in the 200ppm range or a bit higher and you’ll see better results. This is due to our extremely low salt index in all our lines so we need the tap water to make up some of that.


Cal-Mag would seem the way to go given that response.
Weird that Canna doesn't sell their own cal/mag product in the states.

Yep, this is exactly what happens when you use RO water. Most nutrients are designed for use with tap water, its not just Canna's line. If you have soft water or use RO a lot of the times you will have to use CalMag. I have an RO unit so the majority of the time I'll have to use Calmag. There are some strains that you won't have to though.

 

[onegreenday]

Hey everyone. I have been curious about this cal/mag canna forum. Been trying canna coco with humboldt nutrients a/b line plus all additives. They recomend cal supplement in veg and mag supplement in flower. The humboldt nutrient line has a sea-cal and sea-mag which are seperate. Should I be adding cal and mag at the same time? I have been getting some of the leaf curling as well.

I have that chart & wondered why there's no magnesium in veg.

I figured the MAG must be in the Verde which they suggest for grow.

Do you use Verde & does it have MAG??