The state fisheries department in Prayagraj is promoting aeration systems to enhance fish production and profitability. This technology increases dissolved oxygen in ponds, improving fish health and growth. The department offers subsidies of up to 60% for SC/ST farmers and 50% for general category farmers to encourage adoption of the system, which costs between ₹30,000-₹35,000 and is suitable for ponds of half a hectare or more.