2. Pond breeding. A system that has sufficient sunshine and water sources and can treat water sources in time can provide fresh water quality in time. It's best to control it at about one foot when filling the sludge. If it is too deep, it will consume too much oxygen.
3. Warm water feeding. This method has high cost and advanced technology. We should always pay attention to the control of water temperature, with normal temperature as the best state, and then use advanced water source control system to achieve a state of flowing water.
4. Feeding in the open air. Changing the water quality every day and using artificial equipment to ensure the oxygen content in the water in time can not only provide a comfortable living environment, but also kill the bacteria in the water.