Before stocking fingerlings -
Make sure there is no water in the pond.
If the pond is old, the pond must be cleaned not to left wild fish and insects and dried for about 1-2 weeks.
Apply lime 90-120 g per meter square at the bottom of the pond evenly to clean the pond and to increase pH.
Fill the fresh water into the pond after setting up the filter net over the inlet pipe, one week after lime application.
It is impossible to completely drain and dry the pond, remove weeds and aquatic plants.
Applying average chicken manure 7000-9000 kg per ha (2800-3600 kg/ac) can increase nutrient and water fleas.
400 – 600 g of compost per acre can be applied during pond preparation.