Seachem Fish & Aquatics Flourish Iron, 4 Litre, White/Red

Flourish Iron is a highly concentrated (10,000 mg/L) ferrous iron gluconate supplement. Plants are able to much more easily derive a bene from Flourish Iron because ferrous iron gluconate is already in the ferrous form so they do not expend energy reducing it. Highly concentrated (10,000 mg/L) iron source for the planted aquarium Ferrous gluconate iron Ferrous gluconate is better suited to foliar feeding than iron-EDTA Directions: Use 1 capful (5mL) for each 200L (50 US gallons) or as required to maintain about 0.10 mg/L iron. for smaller doses please note that each cap thread is about 1mL.