Before stocking you must check the fingerlings for their
Vigorous activity and normal behaviour
Presence of cysts, spots, haemorrhage, discoloured patches on the body, gills, fins, etc. are signs of diseased fingerlings. Avoid taking fingerlings from such pond/stock.
Dip the fingerlings for a minute either in potassium permanganate solution or common salt solution before stocking them in the pond.
Add either 1 tea spoonful of potassium permanganate or 200 g of common salt solution in a bucket of water (10 litre) for making the solution.