We include a 50 ml (2 fl. oz.) measuring cup for accurately measuring your Seachem Flourish Iron.

Seachem Flourish Iron is a highly concentrated (10,000 mg/L) ferrous iron (Fe+2) gluconate supplement. It should be used in those cases where the iron requirements exceed that which can be delivered by Seachem Flourish at the recommended dose or signs of iron deficiency appear (such as short and slender stems or yellowing between veins.) Contains no phosphate or nitrate.

• For plants with high iron requirements or plants with iron deficiency
• Use 1 capful (10 ml) for each 100 gallons or as required to maintain about 0.10 mg/L iron. Use the Seachem MultiTest Iron Test Kit to monitor iron concentrations.This 2 liter size treats 400 gallons for 1-2 months.