1. Choose a comfortable container: Use a plastic bag or container that is large enough for your goldfish and has a secure lid. Fill the container with water from your aquarium, and make sure the water temperature is similar to the temperature in the aquarium.
2. Add oxygen: To ensure your goldfish has enough oxygen during the journey, add an airstone or bubbler to the container. Alternatively, you can occasionally shake the container gently to introduce air.
3. Secure the container: Make sure the lid of the container is securely fastened so that your goldfish can't escape.
4. Place the container in a safe location: Place the container in a secure location in the car, away from direct sunlight and drafts. Avoid placing the container on the floor, as this can cause the water to slosh around and stress your goldfish.
5. Monitor the goldfish: Keep an eye on your goldfish during the journey and check on it frequently. If you notice any signs of stress, such as gasping for air or erratic swimming, pull over and take a break.
It's important to keep the travel time as short as possible, and to avoid unnecessary stops along the way. With proper care and preparation, your goldfish can safely travel in the car.