Prawn farming in the Ramnagar areas of Purba Medinipur, West Bengal, has become an important source of rural livelihood and income generation. However, culture intensification, organic waste accumulation, unstable water quality, and disease outbreaks frequently reduce productivity and survival in pond systems. Against this background, bacterial suspension has emerged as a promising biological input for improving pond ecology and animal health. The present study examines the effect of bacterial suspension on growth performance, survival, and water quality in prawn farming of Ramnagar. The study is based on a comparative evaluation between ponds treated with bacterial suspension and ponds managed under conventional practice. Major production indicators considered include body weight gain, specific growth rate, feed utilization, survival percentage, and selected water quality parameters such as pH, dissolved oxygen, ammonia, nitrite, and organic load. Existing aquaculture research shows that bacterial or probiotic preparations, especially those dominated by Bacillus spp., can improve water quality, reduce ammonia and nitrogenous waste, suppress pathogenic bacteria including Vibrio, and support better growth and immunity in crustaceans. Studies on Macrobrachium rosenbergii have likewise reported improvements in growth, survival, microbial balance, and nitrogen management after probiotic application. On that basis, the article argues that bacterial suspension can play an important role in sustainable prawn farming in the coastal aquaculture environment of Ramnagar. The study concludes that bacterial suspension is a useful eco-friendly management strategy for improving pond health, reducing disease risk, and enhancing farm output, though its success depends on dose, application frequency, pond condition, and overall farm management.