Fry of catla (Catla catla Hamilton), rohu (Labeo rohita Hamilton), fringe lipped carp (L. fimbriatus Bloch) and olive barb (Puntius sarana Hamilton) were stocked after due acclimatization in the tanks at a combined density of 50 fry/m2 (0.5 million/ha) at 1:2:1:1 ratio