Question: asked about limming anf fertilization of fish pond
Answer: new pond 100 kg lime per bigh before stocking fish on quarterly basis @ 25 kg per bigha after every 4 months
old pond 26 kg lime per bigha once 
monthly dose for fish pond @ 10 kg per bigha: mix with water and keep for 4 hrs before application
after 3 months check ph for water again
 fertilization:
cowdung@ 130 kg per bigha
urea and ssp @ 3.2 kg per bigha and ssp @ 2.6 kg per bigha: mix together with water
keep 7 dyas between each treatment