State two problems of composite fish culture?

Through this process, fishes are reared in a favorable environment & nurtured keeping their requirements on priority.

• The major drawback is many fishes breed only during the monsoon season. Hence the rate of productivity varies in different seasons.

• Every species has its own food habit, as Catlas are surface feeding fishes, carps are bottom feeders whereas Rohus feed on middle areas. Thus if a proper study is not done, then it will cause competition for food & it will not be distributed evenly inside the cultured medium.