Dennerle Plant System S7 is a preparation with a high content of vitamins and elements, designed for large aquariums with demanding plants.

Content:
0.06% N total nitrogen, 0.65% K2O water soluble potassium oxide
1.07% organic matter, 0.14% Mg magnesium
0.41% S Sulphur, 0.008% B Boron
0.002% Cu copper, 0.001% Co cobalt
0.065% Fe iron, 0.026% Mn manganese
0.004% Mo molybdenum, 0.002% Zn zinc
0.0006% Al Aluminum, 0.001% Li Lithium
0.00006% Ni nickel, 0.0003% V vanadium