Sign up for Autoship by 4/16 & save BIG on first three orders, see terms* >

Enable accessibility

|

|

Track your order

11,671,466 lives saved.

Sign up, earn points, get treats

Enable accessibility

Search

icon treats-new-lg

Join ourloyalty program& earn points every time you shop!

Rewards & Account

Shop by brand
Shop by pet
Pet Services
Learning
Deals
New Pet
Pharmacy
My store

Sale
April
Fish Sale

Fish Deals

2500 Point Boost Frozen Food

Earn 2,500 pts on $25+ aquatic & reptile frozen food orders thru 5/3*

Fish deals

Fully decorated aquarium; text that says deals

Tank & stand deals

Goldfish in tank; text that says deals

Desktop aquarium with filter and pump; text that says deals

Hand holding fish flakes; text that says deals

Search brands
Marineland(23)
Top Fin(20)
Seachem(13)
Aqueon(12)
OASE(10)
Tetra(7)
Penn-Plax(2)
Pisces(2)
API(1)
Marina(1)
$0 - $50+
$0$25$50+

Fish Sale

(91 results)

Top Fin® Large Power Filter Cartridges

(289)

$17.99

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

Free Same-Day Delivery, No Order Minimum!

+ 1 more

Top Fin® Silenstream™ Small Filter Cartridges

(65)

$14.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Top Fin® PF-S Silenstream Aquarium Filter Cartridges

(238)

$8.99 - $17.99

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

Save 35% On Your First Autoship Order!

+ 2 more

3 sizes

Top Fin® Element EF-S Filter Cartridges

(382)

$8.99 - $17.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Internal Filter Cartridges

(34)

$7.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Top Fin® CN-S Corner Filter Cartridges

(52)

$8.99 - $14.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Seachem® Purigen® Premium Synthetic Absorbent

(60)

$9.19 - $15.79

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Silenstream Filter Cartridge - 3pk

(122)

$8.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Silenstream™ Large Filter Cartridges

(137)

$14.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Retreat™ RF-L Filter Cartridges

(109)

$14.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Marineland® Penguin Rite Size C Power Filter Cartridges

(84)

$19.97

$23.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Tetra® Whisper Bio-Bag Disposable Filter Cartridge

(148)

$6.47 - $14.57

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

Save 35% On Your First Autoship Order!

+ 2 more

Top Fin® Internal Filter Cartridges

(21)

$7.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

3 sizes

Aqueon® QuietFlow Replacement Aquarium Filter Cartridges

(86)

$17.95 - $20.95

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Marineland® Black Diamond Carbon

(24)

$9.99

$24.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

4 sizes

Top Fin® Pro Power Filter Media Pack

(46)

$7.99 - $16.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Marineland® Rite Size Emperor Power Filter Cartridge

(33)

$12.77

$15.59

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

5 sizes

Aqueon® Aquarium Power Filter Cartridges

(22)

$16.95 - $38.95

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

Save 35% On Your First Autoship Order!

+ 1 more

2 sizes

Top Fin® Filter Media Bag

(70)

$1.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Universal Ceramic Rings

(8)

$3.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

3 sizes

Seachem® Matrix™

(20)

$7.99 - $35.09

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Ceramic Rings

(14)

$12.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Top Fin® Retreat Filter Cartridge - 3pk

(52)

$8.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® CN-L Corner Filter Cartridges

(15)

$8.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Universal Granular Activated Carbon U-Media

(19)

$16.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Filter Fiber Pad U-Media

(56)

$10.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Top Fin® Retreat™ RF-S Filter Cartridges

(106)

$14.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Tetra BIO-Bag® Aquarium Cartridges

(48)

$4.20 - $12.09

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Aqueon® Replacement Aquarium Filter Cartridges

(54)

$9.95

$10.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Marineland® Carbon Filter Bags

(14)

$8.09

$12.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Marineland® Penguin Rite Size B Power Filter Cartridges

(34)

$17.57

$19.99

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

Free Same-Day Delivery, No Order Minimum!

+ 1 more

API® Nitra-Zorb Aquarium Filter Media

(16)

$17.58

$19.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 1 more

Marineland® Penguin Rite Size C Power Filter Cartridges

(42)

$12.77

$15.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

2 sizes

Tetra® Whisper Bio Bag 20-60 Filter Cartridges

(72)

$6.47 - $8.99

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

Save 35% On Your First Autoship Order!

+ 2 more

Aqua Natural Live Filter Media Biospheres

(0)

$9.09

$9.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Aqua Natural Live Filter Media Ceramic Rings

(0)

$9.09

$9.99

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 2 more

Marineland Biological Media Pro Baskets

(0)

$21.09

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 1 more

Tetra Whisper Bio Bag Filter Media 6 ct

(0)

$9.43

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 1 more

Tetra Bio Bag Cartridges 8 ct

(4)

$10.19

$13.79

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 1 more

Tetra Whisper Filter Cartridges 6 ct

(0)

$10.27

$11.49

Get 40% OFF your 1st Autoship order, 20% OFF your 2nd & 10% OFF your 3rd. Place your first order by 4/16

Buy 1, get the 2nd 50% OFF Select aquatic media - Mix & Match

+ 1 more

1
2
3

Pet Services
Help Center
Treats Rewards program

Track your order
Accessibility Statement
Contact Us

About
Careers
PetSmart Charities

US Site
Canada Site

Legit Script

Copyright © 2026 Petsmart LLC

Recalls Terms of Use Privacy Policy Interest-Based Ads CA Supply Chain Act CA Privacy Rights Your Privacy Choices

*See Promotional Terms Page for details. Exclusions may apply. While supplies last. Prices & selection may vary by store & online.