LAST DAY! Save 15% on $50+ orders with FREE Same-Day Delivery, see terms* >

Dive into fish deals

Essentials & more for your finned friends

Shop now

Shop by category

Shop by fish

Meet & greet

Hi, we're NEW! in blue & red type

Say hello to our latest pet BFFs

Get to know new pals at your local PetSmart store

Shop by brand

Shop by tank size

How to Set Up an Aquarium

Learn what you'll need & how to put it together for a happy fish habitat.

Fish

(1512 results)
Top Fin® Essentials Aquarium Starter Kit
6 sizes

Top Fin® Essentials Aquarium Starter Kit

(4457)
$39.99 - $149.99
Save 50% on ALL 10 gallon and below Essential Starter Kits, price displayed
Save 15% when you spend $50+ on FREE Same-Day Delivery
+ 3 more
Top Fin® Pre-Conditioned Aquarium Water

Top Fin® Pre-Conditioned Aquarium Water

(248)
$16.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy 1, get the 2nd 25% OFF all Top Fin food & watercare
+ 4 more
Top Fin® All-In-One Betta Aquarium Starter Kit - 3 Gallon

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

(502)
$27.49
$54.99
Save 50% on ALL 10 gallon and below Essential Starter Kits, price displayed
Save 15% when you spend $50+ on FREE Same-Day Delivery
+ 3 more
Aqueon® Standard Glass Rectangle Aquarium
6 sizes

Aqueon® Standard Glass Rectangle Aquarium

(384)
$13.49 - $99.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 50% on ALL Marineland® & Aqueon® open-glass aquariums thru 7/5, price displayed
+ 3 more
Fluval® Plant & Shrimp Stratum Aquarium Substrate
3 sizes

Fluval® Plant & Shrimp Stratum Aquarium Substrate

(133)
$15.99 - $31.49
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 2 more
CaribSea Super Naturals Aquarium Sand - White

CaribSea Super Naturals Aquarium Sand - White

(33)
$21.33
$27.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 2 more
Top Fin® Large Power Filter Cartridges

Top Fin® Large Power Filter Cartridges

(292)
$17.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 2 more
Seachem® Prime® Aquarium Water Conditioner
4 sizes

Seachem® Prime® Aquarium Water Conditioner

(377)
$3.19 - $16.62
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
Top Fin® Java Fern Live Plant
2 sizes

Top Fin® Java Fern Live Plant

(3)
$6.99 - $14.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy 2, get the 3rd 50% OFF ALL live aquatic & reptile plants thru 7/5
+ 3 more
Top Fin® Anubias Barteri Live Plant

Top Fin® Anubias Barteri Live Plant

(48)
$6.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy 2, get the 3rd 50% OFF ALL live aquatic & reptile plants thru 7/5
+ 2 more
Marineland® High Definition LED Ensemble - 75 Gallon

Marineland® High Definition LED Ensemble - 75 Gallon

(592)
$449.99
$799.99
$350 OFF 75 gallon & 125 gallon ensembles, price displayed.
Buy any fish tank, get 20% OFF select substrate - Online Only!
Fluval® FX6 Aquarium Canister Filter

Fluval® FX6 Aquarium Canister Filter

(224)
$406.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Aquarium & Stand Ensemble - 36 Gallon

Top Fin® Aquarium & Stand Ensemble - 36 Gallon

(99)
$199.99
$399.99
$200 OFF Top Fin® 36 Gallon Aquarium & Stand Ensemble Combo, price displayed
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 1 more
Marineland® Open Glass Aquarium
3 sizes

Marineland® Open Glass Aquarium

(207)
$18.49 - $159.99
Save 50% on ALL Marineland® & Aqueon® open-glass aquariums thru 7/5, price displayed
Buy Any Open Glass Tank, Get 20% OFF Top Fin Glass Hood - Online Only!
+ 1 more
Top Fin® Bow Front Aquarium Starter Kit - 36 Gallon

Top Fin® Bow Front Aquarium Starter Kit - 36 Gallon

(491)
$116.99
$179.99
Buy any fish tank, get 20% OFF select substrate - Online Only!
Save 40% on ALL 20 gallon and above Essentials Starter Kits, price displayed
+ 2 more
API® Freshwater Aquarium Master Test Kit

API® Freshwater Aquarium Master Test Kit

(455)
$35.99
$39.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
Top Fin® Fascinate Column Aquarium Starter Kit

Top Fin® Fascinate Column Aquarium Starter Kit

(372)
$46.49
$92.99
Save 50% on ALL 10 gallon and below Essential Starter Kits, price displayed
Save 15% when you spend $50+ on FREE Same-Day Delivery
+ 3 more
Top Fin® Aquarium Sand - Black
2 sizes

Top Fin® Aquarium Sand - Black

(2)
$9.99 - $24.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 1 more
Top Fin® Silenstream™ Small Filter Cartridges

Top Fin® Silenstream™ Small Filter Cartridges

(65)
$14.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 3 more
Top Fin® PF-S Silenstream Aquarium Filter Cartridges
2 sizes

Top Fin® PF-S Silenstream Aquarium Filter Cartridges

(240)
$8.99 - $17.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 3 more
Nature's Ocean Live Nutri-Seawater

Nature's Ocean Live Nutri-Seawater

(37)
$20.50
$25.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
CaribSea African Cichlid Mix Aquarium Substrate

CaribSea African Cichlid Mix Aquarium Substrate

(43)
$18.94
$29.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 2 more
Top Fin® Corner Tank Aquarium Starter Kit - 6 Gallon

Top Fin® Corner Tank Aquarium Starter Kit - 6 Gallon

(386)
$42.49
$84.99
Save 50% on ALL 10 gallon and below Essential Starter Kits, price displayed
Save 15% when you spend $50+ on FREE Same-Day Delivery
+ 3 more
Top Fin® Element EF-S Filter Cartridges
3 sizes

Top Fin® Element EF-S Filter Cartridges

(384)
$8.99 - $17.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 3 more
Top Fin® Aquarium Hinged Glass Lid
7 sizes

Top Fin® Aquarium Hinged Glass Lid

(318)
$16.99 - $58.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy Any Open Glass Tank, Get 20% OFF Top Fin Glass Hood - Online Only!
+ 3 more
Activ-Flora Floracor Black Planted Aquarium Substrate

Activ-Flora Floracor Black Planted Aquarium Substrate

(23)
$20.80
$24.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 2 more
Top Fin® Pre-Conditioned Betta Aquarium Water

Top Fin® Pre-Conditioned Betta Aquarium Water

(10)
$11.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy 1, get the 2nd 25% OFF all Top Fin food & watercare
+ 4 more
Top Fin® Premium Aquarium Gravel - Classic Beach

Top Fin® Premium Aquarium Gravel - Classic Beach

(68)
$7.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 3 more
Top Fin® Compact Aquarium Heater
3 sizes

Top Fin® Compact Aquarium Heater

(509)
$14.59 - $33.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 2 more
Top Fin® Silenstream™ Aquarium Power Filter
5 sizes

Top Fin® Silenstream™ Aquarium Power Filter

(1592)
$18.99 - $49.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 2 more
Top Fin® Amazon Sword Live Plant
3 sizes 1 color

Top Fin® Amazon Sword Live Plant

(175)
$6.99 - $12.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy 2, get the 3rd 50% OFF ALL live aquatic & reptile plants thru 7/5
+ 2 more
Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner
2 sizes

Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner

(210)
$3.94 - $8.00
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
Aqua Natural Aquarium Sand - White

Aqua Natural Aquarium Sand - White

(73)
$12.99
Buy any fish tank, get 20% OFF select substrate - Online Only!
Omega™One Frozen Blood Worms Fish Food

Omega™One Frozen Blood Worms Fish Food

(208)
$8.99
$9.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Dwarf Hairgrass Live Plant Tissue Culture

Top Fin® Dwarf Hairgrass Live Plant Tissue Culture

(39)
$9.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy 2, get the 3rd 50% OFF ALL live aquatic & reptile plants thru 7/5
+ 2 more
API® Stress Coat Tap Water Aquarium Conditioner
6 sizes

API® Stress Coat Tap Water Aquarium Conditioner

(538)
$2.28 - $37.58
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
Top Fin® Aquarium Gravel Vacuum
4 sizes

Top Fin® Aquarium Gravel Vacuum

(836)
$9.99 - $21.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 2 more
Top Fin® Aquarium Air Pump
3 sizes

Top Fin® Aquarium Air Pump

(792)
$17.39 - $20.79
Save 15% when you spend $50+ on FREE Same-Day Delivery
Earn 5X points (10% back in savings) on all Top Fin products!
+ 2 more
API® Guide Fish Problem Solving General Cure

API® Guide Fish Problem Solving General Cure

(62)
$16.38
$23.49
Save 15% when you spend $50+ on FREE Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
Top Fin® Premium Aquarium Gravel - Caribbean Sea Mix
2 sizes

Top Fin® Premium Aquarium Gravel - Caribbean Sea Mix

(54)
$7.99 - $25.99
Save 15% when you spend $50+ on FREE Same-Day Delivery
Buy any fish tank, get 20% OFF select substrate - Online Only!
+ 3 more
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. ...
  8. 25
Legit ScriptDot Pharmacy
Download on the App StoreDownload on the Google Play Store
Copyright © 2026 Petsmart LLC
RecallsTerms of UsePrivacy PolicyInterest-Based AdsCA Supply Chain ActCA Privacy Rights
*See Promotional Terms Page for details. Exclusions may apply. While supplies last. Prices & selection may vary by store & online.