Excel in lieu of HCl

C

csmith

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Tom Barr in "Want more accuracy? Want daily PMDD style EI dosing?" said:
(or you can use a mix of Fe DTPA + CMS+B, at 1:4 ratio and mix 1 table spoon to 1 liter of DI water, add HCL or Excel to prevent fungus etc)

In what ratio is Excel used as a substitute for HCl? I've seen Excel has a limited shelf life, so how much is needed to be used in 1 L of liquid ferts, or is it the same amount?
 

Tom Barr

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Jan 23, 2005
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I add about 25 mls per liter.

Regards,
Tom Barr