* A filter: A filter is essential for removing waste from the tank water.
* A heater: Goldfish are cold-water fish, but they still need a heater to keep the water temperature between 65 and 75 degrees Fahrenheit.
* Gravel: Gravel provides a substrate for the goldfish to swim on and helps to keep the water clean.
* Decorations: Decorations can help to make the tank more appealing to the goldfish.
* Food: Goldfish need to be fed a high-quality diet of pellets or flakes.
* Water conditioner: Water conditioner helps to remove harmful chemicals from the tap water.
* Test kit: A test kit allows you to monitor the water quality and make sure that it is safe for the goldfish.