I will be getting a scale to weigh my tortoise. Is there a good number for food weight vs. tortoise weight? I don't want Mr. Tibbs to get fat. I also found a local supplier of dandelion greens, and he LOVES them! Someone told me that the amount of food should cover the shell? I also reduce the amount of food that I feed by hand, but it seems lately when I get home Mr. Tibbs is staring at the food dish, or in the dish waiting for food!