Turtles will only eat in an environment suitable for their lives, such as a specially built turtle pond. Do you want to gain weight? You need to be at least half dry and half wet in an ordinary water environment. But without its primitive living environment, even if it eats, it is difficult for turtles to gain weight, and it will take at least three months to do so. Also a reminder, if you have the conditions, it is best to oxygenate and change the water in time, otherwise death may occur.