Hils and Glenns
LIFE MEMBER
It's 97% FeSo4 so it's basically Ferrous Sulphate, there's a small (3%) of Calcium Carbonate (CaCo3) which is probably used in it's other applications in water purification or Po4 (phosphate) removal.
I'd suggest someone like APC Pure, it's where i buy most of my lab grade chemicals from.
It should be pretty cheap to buy Ferrous Sulphate in the UK
Is Ammovit the same stuff that is used as a lawn fertilizer?Exactly the same as the Ammovit product as it's chemically the same barring the few grms of Calcium Carbonate (chalk) in there.
I know what i'd be buying....
My other hobby persuades me to search out source materials vs paying for branded wonder potions.
I'll happily buy some and try it out on my grey tank (don't have a black tank)
Amazon product ASIN B00DJ48NW6