Question: asking about scientific fish farming practices

Answer: --bleadching powder for insect erdicatiuo or control @ 46 kg for 1 bigha as powder or mix with water and apply on the water 
after 1 week lime application @ 25 kg per bigha : mix the lime with water and keep it for 1 night and broadcast it on the the day 
after 7 days, apply cowdung @ 200 kg per bigha and then after another 7 days apply urea and ssp @ 3.5 kg urea and 2.7 kg ssp , mix together with water and broadcast on the pond
agter 7 days you can stock the fish ; for fingerling stocking @ 6000 fingerling fish per hactare and for spawn stocking @ 10 lakh 
feed rice bran and mustard oil cake @ 1:1 ratio during their young age
when the fish mouth size become bigger in size please use artificial fee in pellete form : nsf, abs and godrez companny
feeding @ 3 percent per body weight
growth promoter: agrimine forte 10 gram per kg feed: mix with the feed 
cifax @ 130 ml per 13 l water mix well, if the disease is not cured then after 15 days apply trhe same dose and broadcast for eus or ulcer on fish body 
use cifax and prevention as well as treatment after fish got disease