How to Clean a Goldfish Tank. Your goldfish will need their tank cleaned regularly. Your tank cleaning schedule will depend on the size of your fish tank, the total number of pet fish, and your filtration setup. Remember to always wash your hands before and after cleaning a tank.
Goldfish tanks are tanks designed specifically for keeping goldfish. Some of the most important things to consider when selecting a tank for goldfish are the size of the tank, what material the aquarium is made of, and where the tank will be kept.
From high-quality goldfish food to spacious goldfish tanks, fish tank decorations, and essential equipment like fish tank stands and lighting, PetSmart has everything you need to care for your goldfish. Shop online or visit a store today. Frequently Asked Questions (FAQs).

Goldfish are the most popular pet fish on the planet. Learn what tank to choose for your goldfish pets in our ultimate guide to goldfish tanks.
Tank requirements for goldfish differ dramatically from the small bowls and minimal setups commonly associated with these fish, reflecting their substantial size potential and significant waste production.

Fancy goldfish require a particular size tank to thrive. It is recommended to keep fantail goldfish in a home aquarium that is at least 20 gallons in size. This allows enough space for the fish to swim around the tank.