Ferro is a concentrated and effective iron source for vibrant and healthy plant growth. The product not only contains iron (II), but also supporting nutrients like potassium as well. It does not contain nitrates and phosphates.Daily dosage:10 ml per 100 litres (1 fl oz per 24 US gallons) raises the Fe-concentration by 0.5 ppm or 0.5 mg/l. Use a normal dosage (10 ml per 100 litres) weekly to keep the plants healthy and green.
