Oldguy
Member
DIY ferts. What I have found is the following:
Pot Nitrate & Pot Di-hydrogen Phosphate dissolved in 2litres of warm tap water. Stored in the dark, it lasts me 14 days, no issues - nothing sterilized.
Magnesium sulphate added to the replacement water following water change. No storage, no issues.
Chelated Iron & trace elements dissolved in rain water and stored in the dark. Nothing sterillized, last for months, no issues.
'Dry salts' stored in the dark last for years and years. Sell by dates are a con or perhaps to be charitable may refer to the packaging. but I doubt it.
I do not use 'all in one' ferts.
Pot Nitrate & Pot Di-hydrogen Phosphate dissolved in 2litres of warm tap water. Stored in the dark, it lasts me 14 days, no issues - nothing sterilized.
Magnesium sulphate added to the replacement water following water change. No storage, no issues.
Chelated Iron & trace elements dissolved in rain water and stored in the dark. Nothing sterillized, last for months, no issues.
'Dry salts' stored in the dark last for years and years. Sell by dates are a con or perhaps to be charitable may refer to the packaging. but I doubt it.
I do not use 'all in one' ferts.