Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to give a gerbil a sand bath [title] Purchase a small dish to use as a " gerbil bathtub. [step] " you could buy a small dish, such as a cat dish, at your local pet store or online. This will serve as your " gerbil bathtub.

Ending1: " the dish should be approximately the same color as the water that you use for your gerbil bath, allowing your gerbil to swim around in the water without wetting his back. [title] Use plastic buckets or baskets for several bowls. Ending2: " find a dish or a bowl that has a relatively flat base, since your gerbil will be rolling around in it. It could be a plastic, ceramic or a metal dish. Ending3: " look for a dish with drainage holes in it, to make your bath easier. [substeps] You can use a large plastic tray. Ending4: " fill the dish with 1/4 to 1/8-1/2 cup sand per one gallon of water. [substeps] Read the instructions on the bag to see how much sand is needed in order to create a healthy bathing-bubble bath.

Answer format: ending1/ending2/ending3/ending4