Deals on fish & aquariums

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(70 results)
Fluval AC Power Filter
4 sizes
(96)
$42.99 - $97.99
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Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Silenstream™ Aquarium Power Filter
5 sizes
(1487)
$15.59 - $49.99
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+ 1 more
Top Fin® Aquarium Sponge Filter
3 sizes
(202)
$9.99 - $19.99
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+ 1 more
Marineland Penguin PRO 375 Aquarium Power Filter
(208)
$64.89
$69.99
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Fluval® FX6 Aquarium Canister Filter
(200)
$369.99
$419.99
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Fluval® 407 Performance Aquarium Canister Filter
(124)
$229.99
$269.99
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Fluval FX2 Aquarium Canister Filter
(32)
$269.99
$319.99
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Marineland® C360 Aquarium Canister Filter
(383)
$216.29
$219.99
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+ 1 more
Fluval® FX4 Aquarium Canister Filter
(125)
$309.99
$359.99
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+ 1 more
Fluval® 307 Performance Aquarium Canister Filter
(97)
$189.99
$199.99
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+ 1 more
Fluval® 207 Performance Aquarium Canister Filter
(81)
$159.99
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+ 1 more
Marineland® Emperor® PRO 450 Aquarium Filter
(100)
$94.79
$99.99
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Penn Plax Cascade 1000 Canister Filter
(40)
$134.99
$144.99
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+ 1 more
Top Fin® CN-S Corner Filter Cartridges
2 sizes
(48)
$8.99 - $14.99
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Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
+ 3 more
Marineland® Magniflow C250 Aquarium Canister Filter - 55G
(244)
$155.59
$169.99
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+ 1 more
Top Fin® Aquarium BETTAFLO™Filter
(570)
$14.99
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Aqueon® QuietFlow Aquarium Canister Filter 100-150 Gallon
(10)
$249.99
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Penn Plax Cascade 700 Canister Filter
(24)
$124.99
$134.99
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+ 1 more
Marineland® Penguin PRO 275 Aquarium Power Filter
(227)
$51.29
$54.99
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Tetra® Whisper IQ Power Aquarium Filter
5 sizes
(376)
$19.99 - $50.77
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+ 1 more
Top Fin® Pro Aquarium Power Filter
4 sizes
(201)
$34.99 - $79.99
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+ 1 more
Marineland® Polishing Internal Filter
(227)
$92.89
$99.99
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Top Fin® SF10 Aquarium Sponge Filter
(26)
$6.99
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+ 1 more
Aquael Ultramax 2000 External Filter
(1)
$249.99
$320.99
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Aquael Turbo 500 Internal Filter
(10)
$38.99
$44.99
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Free Same-Day Delivery, No Order Minimum!
+ 1 more
Aqueon® QuietFlow Internal Aquarium Filter
3 sizes
(144)
$19.39 - $33.99
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Free Same-Day Delivery, No Order Minimum!
+ 1 more
Aqueon QuietFlow Aquarium Canister Filter 75 Gallon
(7)
$209.99
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Marineland Magnum 200 Polishing Internal Canister Filter
(20)
$59.99
$69.99
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OASE BioMaster 250 External Filter - Up to 70 Gallons
(0)
$233.99
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Fluval® FX6 Service Kit
(1)
$53.59
$55.99
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Marineland Penguin PRO 125 Aquarium Power Filter
(190)
$33.99
$34.99
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Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland Penguin PRO 175 Aquarium Power Filter
(195)
$43.19
$44.99
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Top Fin® IF20 Internal Aquarium Filter
(99)
$22.99
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+ 1 more
Top Fin® IF40 Internal Aquarium Filter
(111)
$29.99
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Free Same-Day Delivery, No Order Minimum!
+ 1 more
Tetra BIO-Bag® Aquarium Cartridges
2 sizes
(46)
$4.79 - $12.99
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Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
+ 3 more
Fluval® Underwater 3 Filter
(20)
$44.99
$74.99
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Tetra® Whisper In Tank Power Aquarium Filters
(134)
$26.12
$29.99
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Free Same-Day Delivery, No Order Minimum!
+ 1 more
Tetra® Whisper In Tank Power Aquarium Filters
(424)
$15.99
$19.99
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+ 1 more
Aqueon® QuietFlow® PRO Aquarium Power Filter
(11)
$87.99
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+ 1 more
Aqueon® SmartClean™ Aquarium Power Filter
4 sizes
(92)
$24.99 - $69.99
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Making sure that your finned friends have clean water in their tank is one of the most important responsibilities you have as their pet parent. Having the correct filter for your aquarium is vital to removing waste and other harmful contaminants from the water your fish live in. We have many different types of fish tank filters such as canister filters, external filters, internal filters, power filters and undergravel filters. No matter what type of tank you have, you’ll find the best fish tank filters at PetSmart. We also carry replacement parts and filter cartridges for easy maintenance of your filter. 
Do you need something other than fish tank filters? At PetSmart, we know how important your pets are to you, which is why we carry everything you need to have a healthy fish tank for your fishies. You'll find all the best filter and pump supplies for your fish tank or aquarium, including:
While you’re here, shop our wide variety of the best fish supplies to help your fishy friends live their best life like feedersfish food 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 what items are eligible.