Aquariums

(34 results)
Top Fin® Essentials Aquarium Starter Kit
8 sizes
(4161)
$34.99 - $183.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® All-In-One Betta Aquarium Starter Kit - 3 Gallon
(413)
$27.49
$54.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Bow Front Aquarium Starter Kit -  36 Gallon
(457)
$147.99
$194.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Fascinate Column Starter Kit
(298)
$44.99
$89.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Split Bowfront Aquarium - 5 Gallon
(752)
$49.99
$59.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® 36 Gallon Aquarium & Stand Ensemble Combo
(61)
$299.99
$449.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Top Fin® Captivate Starter Kit
(414)
$107.99
$134.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® 10 Gallon Angled Aquarium
(139)
$89.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® 5 Gallon Shrimp & Plant Aquarium
(87)
$69.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Half Moon Aquarium - 3.5 Gallon
(2062)
$39.99
$44.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Shrimp & Plant Oasis Tank - 3 Gallon
(276)
$54.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® LED Bubble Wall Aquarium Kit
2 sizes
(830)
$89.99 - $134.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Bowfront Betta Duo Aquarium - 2.5 Gallon
(1111)
$34.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Premium Glass Aquarium - 5 Gallon
(1560)
$69.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Hexagon Aquarium - 2 Gallon
(690)
$34.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Custom Colorflow™ Aquarium with 7 Color-Changing LEDs
3 sizes
(1369)
$48.07 - $69.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin Bowfront Aquarium & Stand Ensemble - 36 Gallon
(662)
$249.99
$399.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Top Fin® Diamond Aquarium - 1 Gallon
(766)
$24.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® 3 Gallon Bamboo Base Aquarium
(61)
$54.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Betta Waterfall Dual Aquarium
(262)
$54.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Corner Tank Aquarium Starter Kit - 6 Gallon
(340)
$69.99
$79.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Easy Clean Aquarium - 3 Gallon
(463)
$44.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® LED Black Glass Aquarium
2 sizes
(177)
$54.99 - $89.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Easy Clean Aquarium - 5 Gallon
(421)
$59.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Trapezoid Aquarium - 3G
(17)
$34.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Clear Vivid View Aquarium - 3 Gallon
(199)
$54.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® LED Aquarium & Stand Ensemble - 125 Gallon
(317)
$999.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Top Fin® Backlight Aquarium
2 sizes
(893)
$54.99 - $69.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Betta Bamboo Aquarium - 3 Gallon
(573)
$54.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Round Fish Bowl
(181)
$11.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Smart Touch Aquarium - 3.7G
(12)
$64.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® Magnified Aquarium - 3G
(10)
$34.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
Top Fin® LED Aquarium
2 sizes
(113)
$125.99 - $202.99
Buy any Open Glass Tank Get 20% off any Top Fin Glass Hood
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
+ 1 more
Top Fin® Colorflow™ Aquarium Starter Kit with 7 Color-Changing LEDs
(426)
$89.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Free Same-Day Delivery, No Order Minimum!
  1. 1
Searching for a new fish tank or aquarium for your aquatic friend is exciting! From picking out the perfect one to decorating it and filling it with everything your pet fish needs, it is a fun process. 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. 
Our collection of fish habitats include products like: 
10–300-Gallon Fish Tanks
Aquarium Starter Kits
LED Aquariums 
Fish Bowls
360° View Aquariums
Acrylic Fish Tanks
Glass Aquariums
Betta Tanks
And More 
 
You are bound to find the perfect setup for your fish at PetSmart. Need other fish tank supplies while you’re here? We also carry a wealth of other important and useful products including aquarium stands, tank dividers, and more.
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see which items are eligible.
 

Frequently Asked Questions (FAQs)

 
Is having a fish tank worth it?
Searching for a new fish tank or aquarium for your aquatic friend is exciting! From picking out the perfect one to decorating it and filling it with everything your pet fish needs, it is a fun process.
 
How much does a 100 gallon aquarium cost?
The cost of a 100-gallon fish tank varies depending on where you get it and who makes it. At PetSmart, 100-gallon (380 liters) tanks cost anywhere from $1000-$1700
 
Is it good to have a fish tank at home?
Fish don't bark, meow, play fetch or get the zoomies. While those are great qualities of other pets, the opposite is what makes fish so great. These pets are calming, quiet and serene to watch as they enjoy their environment.