MasterLine Potassium is aolution based on potassium (K). Contains no nitrate or phosphate. MasterLine Potassium enables separate control of the nutrients with daily or weekly dosing.MasterLine Potassium+ fertilizer for ornamental aquarium plants, based on potassium+ since it contains only potassium, adding the solution to the aquarium does not add other unwanted elements+ resolves potassium deficiency which prevents the activation of enzymes needed by plants+ prevents the old leaves to deteriorate and fall, due to potassium deficiency+ together with the individual elements of MasterLine, offers supreme control over nutrient concentrations+ can be dosed as a supplement to complete fertilizing formulas+ compatible with all forms of aquatic life, including shrimp+ suitable for daily or weekly dosage+ element with a high degree of stability+ contains a graduated measuring cup from 2.5 to 20 mlDosage MasterLine PotassiumAdd when necessary, depending on the preferred values 1 ml to 30 liters