Before stocking you must check the fingerlings for their
Vigorous activity and normal behaviour
Healthy look
Bright colour
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.
Prophylactic treatment
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.