What's wrong with the sparrow pull

The sparrow is thinner due to the poor food and drinking water, and may also have gastroenteritis.If it is because of the problem of food and drinking water, you need to do a good job of changing food and water. Because the food stores is not easy to deteriorate, it is generally the food that has not been replaced in the middle of the tank for a long time, so you need to change it regularly.If it is because of gastroenteritis, antibiotics are needed, which is commonly used.