Help with Ca Mg/

[MindSoup]

That's such a tiny amount needed, I have to add something like 45mg/L

 

[howard wolowitz]

Just now, ratdog said:

do we have any photos of your plants?

No not yet

[howard wolowitz]

Just now, MindSoup said:

That's such a tiny amount needed, I have to add something like 45mg/L

 

So just over half a ml of mono.....think it was £12 litre

 

 

[Cursed]

Concentration 1 x Volume 1 = Concentration 2 x volume 2 (C1V1 = C2V2)

 

V1 = C2V2 / C1

 

V1 = 4.65 mg/L x 1L / 70,000mg/L

 

V1 = 0.000066428571429 L

 

V1 = 0.000066428571429 L x 1000

 

V1 = 0.066ml mono to 999.934ml of water.

 

 

Edited December 15, 2023 by Cursed

[MindSoup]

38 minutes ago, howard wolowitz said:

just over half a ml of mono.

No, that would be 0.66 this is 0.066 it's just over half a tenth of a ml. 

 

E2A unless We're all a decimal out somehow. 

 

1 hour ago, ratdog said:

do we have any photos of your plants?

This is a good point, is this even the issue? 

Edited December 14, 2023 by MindSoup

[highjokr]

Canna mono is equal to 42.2ppm per ml (7% on the bottle doesn’t account for oxgen weight according to GSZZ post a while back)

4.65mg / 42.2 = 0.11ml/L

 

So to make your ratio 3:1 calmag you would require 0.11ml/L.

[MindSoup]

Oh bloody hell

[howard wolowitz]

2 hours ago, MindSoup said:

No, that would be 0.66 this is 0.066 it's just over half a tenth of a ml. 

 

E2A unless We're all a decimal out somehow. 

 

This is a good point, is this even the issue? 

3 hours ago, Shumroom said:

Thanks @MindSoup I've been replacing the spread on my lunchtime rolls with coconut oil  

 

So you need 0.66ml/l of mono Mg 

 

So you need to give this every time you water,

except when running down nutrients at the end of bloom.

 

Just asking others does this look ok??

 

I'm fairly sure it's right 

 

Atb

 

 

 

There is no issue hahah seeds are only in water tonight

 

 

This was all triggered from my other thread... about my head being totally battered with all the products out there as I was trying to work out what I would need.

 

Trying to avoid problems Ive caused chaos

 

Sorry guys haha

Guessing most of you have been doing this a while and you are struggling with this one.

Canna don't exactly make it easy.

 

 

 

 

[Lux_Interior]

Just now, howard wolowitz said:

This was all triggered from my other thread... about my head being totally battered with all the products out there as I was trying to work out what I would need.

 

Seed, Light, Food. Love.

[catweazle1]

13 hours ago, howard wolowitz said:

 

 

All it says is add 1 or 2ml per 1ltr water

 

Ive Emailed them and asked them too HAHAHAHAH

 

13 hours ago, MindSoup said:

Yeah that's the same as I just worked.

 

It's 70,000mg/L 70,000/4.65= 15,053.7... and 1000/ 15,053.7...= 0.0664...

It has likely been mixed to the same conc. as I mix mine. This is not hard chaps. Just chuck 2ml/L in, be it this Shogun stuff or Epsom. 250g Epsom in 1L water. Bottle it and use it at 2ml/L. I have yet to see a tap water analysis with too high Mg  in.

[MindSoup]

That post is not easy to understand at all . 

 

What has been mixed to the same concentration as what? 

 

No Shogun or Empsom Salts here, we are discussing Canna Mono Mag (unless I'm mistaken). 

 

So your saying just wang 2ml/L in willy nilly? Of what exactly?  

 

TBF I still haven't even seen his plants so no idea if he eve had a cal/mag issue in the first place . 

Edited December 15, 2023 by MindSoup

[MindSoup]

11 hours ago, highjokr said:

 

So to make your ratio 3:1 calmag you would require 0.11ml/L.

 

So 1.1ml for every 10L, hard to imagine that less than 7% of 1.1ml of something added to 10L could make any difference at all. 77mg is almost microscopic for reference 77mg of something solid (let's say baking powder) would be less than 1 cubic mm

 

Crazy shit. 

Edited December 15, 2023 by MindSoup

[Cursed]

i was just coming in to say we’ve actually calculated for MgO not Mg.

 

Glad someone spotted it.

 

molecular weight Mg = 24.305

molecular weight MgO = 41.3

 

41.3/24.305 = 1.66

 

1.66 x 0.066

 

= 0.10956

= 0.11ml to 999.89ml water 

Edited December 15, 2023 by Cursed

[ratdog]

15 hours ago, howard wolowitz said:

No not yet

 

 

so you are guessing you need it, or you are having issues?

[catweazle1]

 

 

2 hours ago, MindSoup said:

That post is not easy to understand at all . 

 

What has been mixed to the same concentration as what? 

 

No Shogun or Empsom Salts here, we are discussing Canna Mono Mag (unless I'm mistaken). 

 

So your saying just wang 2ml/L in willy nilly? Of what exactly?  

 

TBF I still haven't even seen his plants so no idea if he eve had a cal/mag issue in the first place . 

Mono Mg IS Epsom in water. The % of Mg in Mono Mg is the same as Epsom; 7-8%. The difference in % is due to whether the water part of a given source of Epsom has 6 or 8 molecules of water attached.

 

Yes, I'm saying 'willy-nilly' chuck 2ml/L of Epsom solution made with 250g Epsom dissolved in 1L. Each ml will put in about 32mg Mg.

 

 

Edited December 15, 2023 by catweazle1