Last day! EXTRA 20% OFF thousands of items with code: SAVE20 thru 3/11* >

Fish Deals

(618 results)
Top Fin® Essentials Aquarium Starter Kit
6 sizes

Top Fin® Essentials Aquarium Starter Kit

(4358)
$76.49 - $297.49
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
Top Fin® Large Power Filter Cartridges

Top Fin® Large Power Filter Cartridges

(287)
$23.79
$27.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Fluval Plant & Shrimp Stratum

Fluval Plant & Shrimp Stratum

(7)
$74.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Fluval® Plant Stratum Aquarium Substrate

Fluval® Plant Stratum Aquarium Substrate

(125)
$44.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
CaribSea Super Naturals Aquarium Sand - White

CaribSea Super Naturals Aquarium Sand - White

(31)
$29.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
API® Freshwater Aquarium Master Test Kit

API® Freshwater Aquarium Master Test Kit

(299)
$46.74
$54.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Pre-Conditioned Aquarium Water

Top Fin® Pre-Conditioned Aquarium Water

(242)
$16.99
$19.99
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Fascinate Column Starter Kit

Top Fin® Fascinate Column Starter Kit

(348)
$101.99
$119.99
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
Top Fin® Split Bowfront Aquarium - 5 Gallon

Top Fin® Split Bowfront Aquarium - 5 Gallon

(771)
$63.74
$74.99
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
Top Fin® All-In-One Betta Aquarium Starter Kit - 3 Gallon

Top Fin® All-In-One Betta Aquarium Starter Kit - 3 Gallon

(467)
$50.99
$59.99
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
Top Fin® PF-S Silenstream Aquarium Filter Cartridges
2 sizes

Top Fin® PF-S Silenstream Aquarium Filter Cartridges

(236)
$10.19 - $23.79
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Seachem® Prime® Aquarium Water Conditioner
3 sizes

Seachem® Prime® Aquarium Water Conditioner

(375)
$7.99 - $15.29
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Premium Aquarium Gravel - Classic Beach

Top Fin® Premium Aquarium Gravel - Classic Beach

(66)
$9.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner
2 sizes

Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner

(202)
$11.04 - $15.29
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Bow Front Aquarium Starter Kit - 36 Gallon

Top Fin® Bow Front Aquarium Starter Kit - 36 Gallon

(480)
$254.99
$299.99
Online Only! Save 20% on your purchase with code SAVE20
Top Fin® Captivate Starter Kit

Top Fin® Captivate Starter Kit

(425)
$140.24
$164.99
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
Top Fin® Element EF-S Filter Cartridges
3 sizes

Top Fin® Element EF-S Filter Cartridges

(380)
$10.19 - $23.79
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Half Moon Aquarium - 3.5 Gallon

Top Fin® Half Moon Aquarium - 3.5 Gallon

(2078)
$50.99
$59.99
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
CaribSea African Cichlid Mix Aquarium Substrate

CaribSea African Cichlid Mix Aquarium Substrate

(37)
$36.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Top Fin® Silenstream™ Small Filter Cartridges

Top Fin® Silenstream™ Small Filter Cartridges

(65)
$16.99
$19.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Nature's Ocean Live Nutri-Seawater

Nature's Ocean Live Nutri-Seawater

(30)
$21.24
$24.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Silenstream™ Large Filter Cartridges

Top Fin® Silenstream™ Large Filter Cartridges

(137)
$16.99
$19.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
CaribSea Aragonite Aragamax Select Substrate

CaribSea Aragonite Aragamax Select Substrate

(38)
$22.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 3 more
Top Fin® Aquarium Gravel - River Rock
2 sizes

Top Fin® Aquarium Gravel - River Rock

(4)
$9.99 - $34.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Top Fin® Aquarium Gravel - Midnight Black
2 sizes

Top Fin® Aquarium Gravel - Midnight Black

(14)
$9.99 - $34.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Aqua Natural Aquarium Sand - White

Aqua Natural Aquarium Sand - White

(71)
$19.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 3 more
Top Fin® CN-S Corner Filter Cartridges
2 sizes

Top Fin® CN-S Corner Filter Cartridges

(52)
$9.34 - $16.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Pre-Conditioned Betta Water

Top Fin® Pre-Conditioned Betta Water

(8)
$12.74
$14.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Seachem® Purigen® Premium Synthetic Absorbent
2 sizes

Seachem® Purigen® Premium Synthetic Absorbent

(58)
$15.29 - $16.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
API® Stress Coat Tap Water Aquarium Conditioner
4 sizes

API® Stress Coat Tap Water Aquarium Conditioner

(367)
$5.09 - $16.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Aquarium Gravel Vacuum
4 sizes

Top Fin® Aquarium Gravel Vacuum

(824)
$11.04 - $22.94
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Aquarium Air Pump
3 sizes

Top Fin® Aquarium Air Pump

(776)
$19.54 - $28.04
Online Only! Save 20% on your purchase with code SAVE20
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Premium Aquarium Gravel - Black & Neon
3 sizes

Top Fin® Premium Aquarium Gravel - Black & Neon

(60)
$6.99 - $35.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Top Fin® Aquarium Airline Tubing
2 sizes

Top Fin® Aquarium Airline Tubing

(102)
$5.94 - $10.19
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Penn-Plax Spongebob Pineapple House Aquarium Ornament

Penn-Plax Spongebob Pineapple House Aquarium Ornament

(6)
$11.99
Buy 1, get 2nd 40% off aquatic ornaments and artificial plants
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Top Fin® Premium Aquarium Gravel - Caribbean Sea Mix
2 sizes

Top Fin® Premium Aquarium Gravel - Caribbean Sea Mix

(52)
$9.99 - $35.99
Buy 1, get 2nd 30% off aquatic substrates
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
Top Fin® Silenstream Filter Cartridge - 3pk

Top Fin® Silenstream Filter Cartridge - 3pk

(120)
$10.19
$11.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Aquarium Water Conditioner
3 sizes

Top Fin® Aquarium Water Conditioner

(253)
$6.79 - $15.29
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
API® Aquarium Salt

API® Aquarium Salt

(193)
$11.04
$12.99
Online Only! Save 20% on your purchase with code SAVE20
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Zoo Med Floating Betta Log

Zoo Med Floating Betta Log

(342)
$17.99
Buy 1, get 2nd 40% off aquatic ornaments and artificial plants
Online Only! Save 20% on your purchase with code SAVE20
+ 2 more
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. ...
  8. 16
Download on the App StoreDownload on the Google Play Store
Copyright © 2026 PetSmart LLC
RecallsTerms of Use Privacy Policy Interest-Based Ads Canada Modern Slavery Act
*See Promotional Terms Page for details. Exclusions may apply. While supplies last. Prices & selection may vary by store & online.