The tortoise should be fed every day. My turtle goes to eat small fish every day. Turtles were too young to eat small fish when they were young, so I fed them fish and worms. Easy to maintain. If you put a filter pump on the turtle tank, you don't need to change water every day. You only need to clean the filter cotton once a month or so. The water can be kept very clean, and there is basically no need to change water. Thank you for taking it as the best answer. Give points.