英国采购需求：专业水轮式增氧机、柴油水轮式增氧机、深层增氧机、气流式增氧机、涡轮式增氧机、浮动式增氧机

I'm currently managing a five-acre fish farm and am looking for guidance on the most suitable type of paddlewheel aerator for my setup. Considering the size of my farm, I want to ensure that I select an aerator that can effectively meet the oxygen requirements of the fish. Could you provide information on the different types of paddlewheel aerators you offer that would work best for a farm of this size? Additionally, I'd like to know whether your operations are based in Pakistan or if you can deliver to this region. It would be great to receive your pricing details as well. This information would really help me in making an informed decision. Looking forward to your prompt response!