As you can imagine, simply placing the food in the water can get messy. A great way to avoid messing up the tank and avoiding the problem of food spoilage affecting water quality is to simply feed in a separate container. Many owners keep a simple plastic tub just for this purpose. Just put the turtle in the feeding tub, and then when it is done eating place the turtle back in its regular tank. This is a great way to monitor exactly what your turtle eats and if you have more than one turtle you can make sure each is getting a variety of items and a sufficient amount to eat. As mentioned above, feeding this way means that uneaten food particles do not decompose in the turtles tank, dirtying the water. As an added bonus, many turtles will defecate while eating, so if you feed in a separate container there will be less feces in the tank to deal with, as well.