Growers Ark Feed Schedule

[Caly]

Hi All,

 

So I’m switching my feed from Buddhas Tree to Growers Ark, I’ve sent a sample of to them and obtained the following results:

 

Values in parts per million (ppm) except pH.

Calcium     88

Magnesium  1

Sulphate      7

Alkalinity     280

pH              7.60
 

I’m currently waiting for GA to get back to me is regards whether to use their stand hard water feed or if I’ll need a custom made feed.

 

Anyway, I was advised by an experienced grower on here that when I first start using GA that I should just use the root tonic, A&B and x-traces just to get a feel for the nutes, just wondering what other growers thought as I wanted to use the full spectrum so is there any danger in doing so to begin with? Thanks 

[Guest]

Just root tonic, a and b is all I use now. 

[grower951]

37 minutes ago, fatboy77 said:

Just root tonic, a and b is all I use now. 

Do you leave out the extra traces all together then and feed full strength?  

Edited September 29, 2021 by grower951

[WhyNotEyy]

I just used their soft water soil 1 part and boost it  last harvest didn't feel like plants needed any more

[Guest]

Just now, grower951 said:

Do you leave out the extra traces all together then and feed full strength?  

About 3.5ml per litre gives me 1.4ec, usually sees me most of the way. 

[Oldbear]

2 hours ago, Caly said:

Calcium     88

Magnesium  1

 

I'd be surprised if you don't need a custom feed. Your ratio is 88 : 1 and it should be 2.5 : 1 or no more than 3:1

 

 

[Caly]

15 hours ago, Oldbear said:

 

I'd be surprised if you don't need a custom feed. Your ratio is 88 : 1 and it should be 2.5 : 1 or no more than 3:1

 

 

They have advised the following:

 

Yes I would recommend using  our hard water food and the addition of Magnesium Sulphate (Epsom salts)  at the rate below to ensure the Ca:Mg ratio is in the best range.

If using at 4ml/liter (recommended rate)

Add  2 grams of Epsom salts to 10 liters of water dissolve then add food and adjust pH to 6.4 for coco.

If using at 3ml/liter add 1.2 grams 

If using at 5ml/liter add 1.5 grams yes that's correct (adding more Mg from food so counterintuitive result from calculation)

[Caly]

1 hour ago, Caly said:

They have advised the following:

 

Yes I would recommend using  our hard water food and the addition of Magnesium Sulphate (Epsom salts)  at the rate below to ensure the Ca:Mg ratio is in the best range.

If using at 4ml/liter (recommended rate)

Add  2 grams of Epsom salts to 10 liters of water dissolve then add food and adjust pH to 6.4 for coco.

If using at 3ml/liter add 1.2 grams 

If using at 5ml/liter add 1.5 grams yes that's correct (adding more Mg from food so counterintuitive result from calculation)

Further reply:

 

Yes and Yes the addition of Epsom salts at the rates specified will bring it to around 2.8 :1

[Oldbear]

4 minutes ago, Caly said:

Further reply:

 

Yes and Yes the addition of Epsom salts at the rates specified will bring it to around 2.8 :1

That looks good, as you increase mg you need to increase N for calcium uptake. It's an ion competetion thing especially in flower 

[Caly]

51 minutes ago, Oldbear said:

That looks good, as you increase mg you need to increase N for calcium uptake. It's an ion competetion thing especially in flower 

you don't need to with our food, the N P K levels are designed to work with the Ca and Mg levels in the food/water supply. 

[Oldbear]

3 hours ago, Caly said:

using at 3ml/liter add 1.2 grams 

If using at 5ml/liter add 1.5 grams

 I was referring to this

[Caly]

4 minutes ago, Oldbear said:

 I was referring to this

Thanks mate 

[Caly]

Still not sure whether follow the feed schedule exactly or just just root tonic and a&b  

[Harry Herb]

@Caly How did the hard water nutes + Epsom work out for you mate?  I have a hard water situation here and trying to avoid deficiencies this grow.

[Caly]

16 minutes ago, Harry Herb said:

@Caly How did the hard water nutes + Epsom work out for you mate?  I have a hard water situation here and trying to avoid deficiencies this grow.

I went back to Buddhas Tree nutes, GAs nutes reacted badly with my watering schedule and it caused stem rot. BT nutes just work better for my environment and methods.