[AaronT]

Why not mix up a gallon jug of solution so it can have time to dissolve before you do a water change?

The GH Booster also has ferric sulfate and manganese sulfate as well.

 

[AaronT]

Well, it used to have 5 components as it duplicated a commercially available product. But at some point it changed to the formula I mentioned (that's what is on the label, and has been confirmed elsewhere.)

Ah, I didn't realize they had changed it. I just remembered that it was a supposed exact copy of Equilibrium.