questions: aksed about the lime dose & application (ph is 4.0 ¿ 5.0) in composite fish culture. 
 answers: suggested as agricultural lime: 500 kg / bigha and burnt lime 280 kg/bigha. application: take 1/3 of the total lime in a bucket and mix with water and apply the solution in pond. remaining 2/3 part divied into 10 equal parts and apply in every month.