Aquarium Sales and Discounts

Give your fish a fresh, new home. PetSmart offers a wide range of discount aquariums and fish tanks (on sale for a limited time) that make it easy to upgrade their space – and yours. From tabletop starter kits to 150-gallon tanks for experienced aquarists, you'll find everything they need to make your home theirs. Shop our newest selection for special pricing on high-quality tanks.

Frequently Asked Questions (FAQs)

Can a fish tank be too big?

The bigger the fish tank the better in most cases! Bigger fish tanks can offer more room for exploration and privacy for multi-fish tanks.

Which fish tanks are the best?

Pet parents can shop PetSmart’s huge selection of fish tanks and aquariums in-store and online! Whether you need a small tank for your betta fish, a 75–gallon fish tank, or even a 150–gallon aquarium, we have you covered.

What is a good size fish tank for a beginner?

Beginners should stick to smaller tanks and work their way up as they gain experience. Think about starting with a 5-gallon fish tank. What is a good size fish tank? A good size fish tank will depend on the type of fish and how many you plan to have living inside of it. The general rule is that the more fish you have, the bigger tank you will need.