From the Bcuzz website:-
"Completely soluble in water. Activates biological life in the substrate. Enhances root growth significantly. Contains micronutrients in chelate form. Enzyme-like activity on multiple fronts. Contains aqua bacteria. Contains all components for the citric acid cycle."
Basically, use all the way through the plants lifecycle to increase overall performance, for best results use in combination with the Bcuzz Stimulator range.
Dilution rates are as follows:-