Question: asking about fishy dying and floating in the water body
Answer: told him to apply  lime @ 8kg/bigha and next day apply oxymore tablet @ 20/bigha , antibotic teramycin @ 100mg/kg of feed for 7 days 
for 1 bigha of land 800 fingerling at a ratio of silver carp: catala: rohu at 4;3;3and also go for water  quality test