Ideally, an aquaculture pond
should have a pH between 6.5 and
9 as well as moderate to high total
alkalinity (75 to 200, but not less
than 20 mg/L) and a calcium hardness
of 100 to 250 mg/L CaCO3.
Many of the principles of chemistry
are abstract (e.g., carbonate-bicarbonate
buffering) and difficult
to grasp. However, a fundamental
understanding of the concepts and
chemistry underlying the interactions
of pH, CO2, alkalinity and
hardness is necessary for effective
and profitable pond management. There is no way to avoid it; water
quality is water chemistry.
See this from LSU
See this that has ranges in the Water analyses
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