A biofilm is an assemblage of microbial cells that’s irreversibly related to a floor and enclosed in a matrix of normally polysaccharide material. It can also additionally shape on a extensive kind of surfaces, along with residing tissues, scientific devices, commercial or potable water device pipe or herbal aquatic systems. A well-assorted organism inclusive of algae, micro organism, protozoa, arthropods, etc. can be determined withinside the biofilm assemblage. The biofilm shape relies upon on the character of substratum, hydrodynamics of device, nutrient availability, mild and grazing ability of organism. It has been determined that the advent of substrata for the improvement of biofilm withinside the aquaculture device play a big position. Biofilm organisms are microscopic and relatively nutritious. The organisms of biofilm can also additionally function unmarried mobileular protein and are effortlessly harvested through all length of cultured species in aquaculture compared to planktonic organism withinside the water column. Biofilms are taken into consideration as precise great protein supply (23-30%). Microalgae and heterotrophic micro organism are wealthy supply of immune enhancers, increase promoters, bioactive compounds and nutritional stimulants that may decorate increase overall performance of cultured organism. Substrata reduce the mortality through imparting safe haven and hiding locations to cultured organisms. The connected nitrifying micro organism contained in biofilm enhance the water great through reducing ammonia waste from subculture device thru nitrification process. Biofilm primarily based totally low fee generation will assist aid terrible farmers in producing protein wealthy nutrient in sustainable way from aquaculture. An try has been made to study the position of biofilm in aquaculture.