Shop & save 20% on regular-priced items online w/ code: PETS20 thru 10/8* >

Thankful for DEALS!

Save big on fish & reptile essentials thru 11/1*

Shop all

Shop by fish

Shop by category

Shop by tank size

How to Set Up an Aquarium

Shop must-have essentials to navigate life with fish.

Fish

(1002 results)
Fluval® Plant & Shrimp Stratum Aquarium Substrate Planted Tank Substrate Shrimp Substrate
3 sizes

Fluval® Plant & Shrimp Stratum Aquarium Substrate Planted Tank Substrate Shrimp Substrate

(135)
$26.99
Options from
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Top Fin® Essentials Aquarium Starter Kit
6 sizes

Top Fin® Essentials Aquarium Starter Kit

(4520)
$92.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
Top Fin® Pre-Conditioned Aquarium Water - Fish Tank Care - 2.5 Gallon

Top Fin® Pre-Conditioned Aquarium Water - Fish Tank Care - 2.5 Gallon

(249)
$21.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Large Power Filter Cartridges - Fish Tank Filter Cartridges - 12 Count

Top Fin® Large Power Filter Cartridges - Fish Tank Filter Cartridges - 12 Count

(298)
$28.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Aqueon® Standard Glass Rectangle Aquarium Glass Fish Tank 2.5 Gallon - 55 Gallon
7 sizes

Aqueon® Standard Glass Rectangle Aquarium Glass Fish Tank 2.5 Gallon - 55 Gallon

(404)
$19.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
Marineland® Open Glass Aquarium Glass Fish Tank 10 Gallon - 75 Gallon
3 sizes

Marineland® Open Glass Aquarium Glass Fish Tank 10 Gallon - 75 Gallon

(226)
$46.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
Seachem® Prime® Aquarium Water Conditioner Chlorine & Ammonia Detoxifier
3 sizes

Seachem® Prime® Aquarium Water Conditioner Chlorine & Ammonia Detoxifier

(383)
$7.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Fluval® FX6 Aquarium Canister Filter for Fish Tank Filtration

Fluval® FX6 Aquarium Canister Filter for Fish Tank Filtration

(226)
$523.99
$654.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Top Fin® Aquarium & Stand Ensemble - 36 Gallon

Top Fin® Aquarium & Stand Ensemble - 36 Gallon

(104)
$499.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Top Fin® Bow Front Aquarium Starter Kit - 36 Gallon

Top Fin® Bow Front Aquarium Starter Kit - 36 Gallon

(501)
$299.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Fluval AC Power Filter for Fish Tank Filtration
4 sizes

Fluval AC Power Filter for Fish Tank Filtration

(172)
$54.39
$67.99
Options from
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
API® Freshwater Aquarium Master Test Kit for pH, Ammonia, Nitrite & Nitrate

API® Freshwater Aquarium Master Test Kit for pH, Ammonia, Nitrite & Nitrate

(455)
$54.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® PF-S Silenstream Aquarium Filter Cartridges - Fish Tank Filter Cartridges - 3-12 Count
2 sizes

Top Fin® PF-S Silenstream Aquarium Filter Cartridges - Fish Tank Filter Cartridges - 3-12 Count

(242)
$13.49
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
CaribSea Super Naturals Aquarium Sand - White Fish Tank Sand

CaribSea Super Naturals Aquarium Sand - White Fish Tank Sand

(37)
$32.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Fascinate Column Aquarium Starter Kit

Top Fin® Fascinate Column Aquarium Starter Kit

(387)
$101.99
$119.99
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

(524)
$53.54
$62.99
Enjoy Free Same-day delivery!
Top Fin® Silenstream™ Aquarium Power Filter - Fish Tank Power Filter - 10-75 Gallon
5 sizes

Top Fin® Silenstream™ Aquarium Power Filter - Fish Tank Power Filter - 10-75 Gallon

(1612)
$26.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Aquarium Sand - Black - Fish Tank Substrate - 5-20 lb
2 sizes

Top Fin® Aquarium Sand - Black - Fish Tank Substrate - 5-20 lb

(6)
$11.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Top Fin® Half Moon Aquarium - 3.5 Gallon

Top Fin® Half Moon Aquarium - 3.5 Gallon

(2102)
$53.54
$62.99
Enjoy Free Same-day delivery!
Top Fin® Element EF-S Filter Cartridges - Fish Tank Filter Cartridges - 3-12 Count
3 sizes

Top Fin® Element EF-S Filter Cartridges - Fish Tank Filter Cartridges - 3-12 Count

(386)
$13.49
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Nature's Ocean Live Nutri-Seawater for Saltwater Aquariums

Nature's Ocean Live Nutri-Seawater for Saltwater Aquariums

(37)
$25.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Fluval AC20 Power Filter - Aquarium Filter Media for Fish Tanks

Fluval AC20 Power Filter - Aquarium Filter Media for Fish Tanks

(12)
$60.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Shipping On Orders $49+.
Top Fin® Aquarium Hinged Glass Lid - Fish Tank Lid, Glass Aquarium Canopy - 2.5-75 Gallon
7 sizes

Top Fin® Aquarium Hinged Glass Lid - Fish Tank Lid, Glass Aquarium Canopy - 2.5-75 Gallon

(358)
$18.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Compact Aquarium Heater - Fish Tank Heater - 50-150 Watt
3 sizes

Top Fin® Compact Aquarium Heater - Fish Tank Heater - 50-150 Watt

(520)
$28.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Pre-Conditioned Betta Aquarium Water - 1 Gallon

Top Fin® Pre-Conditioned Betta Aquarium Water - 1 Gallon

(12)
$14.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Premium Aquarium Gravel - Classic Beach - Fish Tank Substrate - 5 lb

Top Fin® Premium Aquarium Gravel - Classic Beach - Fish Tank Substrate - 5 lb

(68)
$9.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Aqua Natural Aquarium Sand - White Fish Tank Sand

Aqua Natural Aquarium Sand - White Fish Tank Sand

(73)
$17.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Top Fin® Aquarium Gravel Vacuum - Multi-Size Fish Tank Gravel Vacuum - Small-Large
3 sizes

Top Fin® Aquarium Gravel Vacuum - Multi-Size Fish Tank Gravel Vacuum - Small-Large

(839)
$19.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Aquarium Air Pump - Fish Tank Air Pump
3 sizes

Top Fin® Aquarium Air Pump - Fish Tank Air Pump

(796)
$24.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner
2 sizes

Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner

(214)
$12.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
API® Stress Coat Tap Water Aquarium Conditioner for Tap Water Dechlorinating
4 sizes

API® Stress Coat Tap Water Aquarium Conditioner for Tap Water Dechlorinating

(542)
$5.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Tetra® TetraMin® Tropical Flakes Fish Food Complete Diet for Tropical Fish
2 sizes

Tetra® TetraMin® Tropical Flakes Fish Food Complete Diet for Tropical Fish

(299)
$14.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Tetra® 6-in-1 Aquarium Water Test Strips for Aquarium Water Testing

Tetra® 6-in-1 Aquarium Water Test Strips for Aquarium Water Testing

(77)
$39.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
San Francisco Bay Brand® Sally's Frozen Spirulina Brine Shrimp™ Frozen Fish Food

San Francisco Bay Brand® Sally's Frozen Spirulina Brine Shrimp™ Frozen Fish Food

(55)
$11.79
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
Top Fin® Aquarium Sponge Filter - Fish Tank Sponge Filter - 20-75 Gallon
3 sizes

Top Fin® Aquarium Sponge Filter - Fish Tank Sponge Filter - 20-75 Gallon

(218)
$13.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Premium Aquarium Gravel - Black & Neon - Fish Tank Substrate - 2-25 lb
3 sizes

Top Fin® Premium Aquarium Gravel - Black & Neon - Fish Tank Substrate - 2-25 lb

(68)
$6.99
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Aquarium Airline Tubing - Aquarium Air Pump Tubing - 8-25 ft
2 sizes

Top Fin® Aquarium Airline Tubing - Aquarium Air Pump Tubing - 8-25 ft

(102)
$8.49
Options from
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Penn-Plax® SpongeBob Pineapple House Aquarium Ornament Fish Tank Decor

Penn-Plax® SpongeBob Pineapple House Aquarium Ornament Fish Tank Decor

(16)
$12.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
Top Fin® Silenstream Filter Cartridge - Fish Tank Filter Cartridges - 3 Count

Top Fin® Silenstream Filter Cartridge - Fish Tank Filter Cartridges - 3 Count

(122)
$12.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Sign in & Save 25% on your first Autoship Order!
+ 2 more
Top Fin® Floating Glass Aquarium Thermometer - Fish Tank Thermometer

Top Fin® Floating Glass Aquarium Thermometer - Fish Tank Thermometer

(249)
$4.99
Online Only! Save 20% on regular priced items with code PETS20 thru 10/8, see terms*
Enjoy Free Same-day delivery!
+ 1 more
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. ...
  8. 25
*Details available on the Promotional Terms Page.