Shawn, just for clarity you use HYDRATED (quick, slaked, etc)lime alond with the alum aplication for insuring no PH chang50% Hy. Lime of the alum used. The use of AG lime will NOT offset a potential PH drop when applying alum.
AG lime is very slow to act and can be added in any amount to a pond safely as the PH of AG lime is well below the max that fish can tolerate. For the slow/long acting benefits of ag lime, it is used as a general pond buffer over NORMAL PH swings experianced.
