kenmastazz said:

Hi,

im using Biobizz and have some magnesium deficiency and I know many use epsom salt I have some canna mono magnesium and would like to know if it is possible to use it instead?

Im asking because BB is organic im not sure if there is a difference between Canna (mgO) or epsom salt(7H20) in regards of the useful bacteria in soil?

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rootexcess said:

That product also contain SO3, but more importantly, and this goes for standard epsom as well, you should really try to get close to a 3:1 ratio of calcium:magnesium. Too much magnesium can upset that balance. One thing I try to hammer in all growers heads is that it's not just having "enough" nutrients, but more importantly it's having the right balance. This is one reason you will see success for growers that don't pump high EC into their soil. If they are using quality nutrients they don't need to overfeed their plants. Personally, I believe a quality product doesn't require additional calcium or magnesium, but if supplementation is needed for some reason, I'd rather have a product that contains calcium and magnesium over magnesium and sulfur.

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kenmastazz said:

Thank you the reason im having deficiency’s and need some extra mag is my tap water and my ca:mag ratio of 10:1 77mg/l ca and 7mg/l mag.

My plan is to add just a little magnesium to my water everytime to balance out the ratio and using liquid is easier so if it is possible I would like to use the canna mono product but I’m still not sure if epsom salt is more organic friendly than canna mono mag ?

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Quantrill said:

cana mono magnesium is epsom salt in water.

In some countries, other than the USA, the fertilizer label guaranteed analysis for magnesium, calcium sulfur ect have to be listed as the oxide form. This is similar to the way we list potassium oxide instead of just potassium on our labels in the usa or Phosphorus pentoxide instead of phosphorus.

dont let it confuse you.

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