I am trying to grow Spirulina for food in a 10 gal aquarium and I need a source of Iron. I have access to an Iron Chelate but not sure if its food or plant safe. All I know about it I listed below. Any information would be appreciated.
Iron Chelate
VERSENOL™ HEDTA-based
25% Sodium Salt of Iron (hydroxyethyl ethylenediamine-triacetic acid)
1% Disodium (hydroxyethyl ethylenediamine diacetate)
16% Sodium Nitrate
1% Ammonium Nitrate
1% Sodium Glycolate
56% Water
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