We all know that, aqua industry is one of the leading multimillionaire industries, which give more profit inbusiness approach. And also it is a passion for some people to get involved in aquatic animal rearing. But now, aqua industry has become an axis for criticism from environmental groups because of an apparent negative effect on the environment from release of waste water. In intensive commercial aquaculture operation source of waste water is because of uneaten food and fish feaces. An Anerobic digestion is a proven technology for waste nutrient sluge treatment and allows generation of renewable energy such as biogas. Organic material such as fish feaces, uneaten foods are converted into Biogas production by using anerobic digestion process. With this prevailing condition, an energy efficient aquaculture technique which use aquawaste water to generate electricity which will eventually run generator thereby reduces the production cost of Aquaculture. Production of biogas from an aquaculture waste water is not a big deal rather sewage waste water. By using the aqua waste water for the production of biogas, we may decrease energy loss in aqua industry as a whole. For large scale aqua industry, this approach is suitable for fuel production to be useful in electricity production.