Yes, but the next call I would be making is to a local farm fertilizer supplier and get them to deliver a few spreader trucks full of Ag lime and have them lime the pond.

The alkalinity and hardness numbers are way too low.

How big is the pond and what is the max depth?

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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).