questions: asked about removal of algal bloom and the reason for death of fishes 
 answers: suggested to take a split bamboo, place it in the surface of the pond by two person on both the end and drag it from one end of the pond to another. also some heap of straw tied together can be released in every corner of the pond and then can be removed after 5 days. aeration and salt is recommended to reduce methane production from pond.