HOMESTEAD FISH POND
On building a functional fish pond, the core principles are;
* Keeping costs and Depth in check
The cost involved in constructing a fish pond depends on the type of material to be used, which could be clay, concrete, or liners. For a concrete pond type, you are likely to spend a lot of money. Your depth dimension should not be greater than 4ft to prevent stratification (sharp difference between the water temperature at the top and bottom of the pond), which can create oxygen-poor conditions at the bottom, which is detrimental to fish health and could adversely affect fish life.
* Chemistry of pond preparation
As for chemicals, you would only need agricultural limestone. But a good alternative would be finely ground quicklime (CaO), which is a strong alkali used as whitewash by painters. You only need a minimal proportion for this. This serves two key purposes;
I) It acts to kill parasites, providing a basic level of disinfection.
II) It helps neutralize the acidity of the pond bottom and any chemical fertilizers used, which you will have to purchase.
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