You could dump it all in at once, but you would need to keep it agitated while you exchanged water in the tank to spray it out. i.e. 2 gasoline powered pumps.

Watch the pH of the water in the pond. Too much of a pH change could kill the fish.

What is your alkalinity and hardness of the water?


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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).