Marine & Freshwater

(57 results)
biOrb Black Mineral Stone Aquarium Ornament
(0)
$37.49
$54.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Coral Ridge Aquarium Ornament
(0)
$52.49
$68.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb LIFE 15 Aquarium with Multi Color LED - 4 Gallon
3 colors
(0)
$159.99 - $194.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb Lava Rock with Fire Coral Aquarium Ornament
(0)
$36.99
$50.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Artificial Aquarium Flower Ball with Daisies - 5"
(0)
$8.49
$11.99
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biOrb Artificial Aquarium Sea Fan - 8"
2 colors
(0)
$11.29 - $13.79
Extra 20% off online only with code SAVE20, see terms
Sign In & Enjoy Free Shipping Over $49
biOrb Fairy Tale Aquarium Ornament Set
(0)
$82.79
$93.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Stone Garden Aquarium Ornament Set
(0)
$59.99
$101.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb LIFE 15 Aquarium with LED - 4 Gallon
3 colors
(1)
$111.09 - $130.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb HALO 30 Aquarium with Multi Color LED - 8 Gallon
2 colors
(4)
$159.99 - $189.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb HALO 15 Aquarium with Multi Color LED - 4 Gallon
2 colors
(3)
$139.99
$154.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb FLOW 30 Aquarium with LED - 8 Gallon
2 colors
(2)
$164.99 - $199.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb FLOW 15 Aquarium Multi Color LED - 4 Gallon
2 colors
(0)
$159.99 - $194.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb FLOW 15 Aquarium with LED- 4 Gallon
2 colors
(0)
$123.99 - $134.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CUBE 30 Aquarium with Multi Color LED - 8 Gallon
(0)
$283.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CLASSIC 60 Aquarium with Multi Color LED - 16 Gallon
2 colors
(2)
$219.99 - $269.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CLASSIC 60 Aquarium with LED - 16 Gallon
2 colors
(3)
$194.89 - $199.59
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CLASSIC 30 Aquarium with Multi Color LED - 8 Gallon
2 colors
(2)
$174.99
$192.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CLASSIC 30 Aquarium with LED - 8 Gallon
2 colors
(2)
$115.99 - $126.79
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CLASSIC 15 Aquarium with Multi Color LED - 4 Gallon
2 colors
(0)
$114.99 - $143.99
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb CLASSIC 15 Aquarium with LED - 4 Gallon
2 colors
(4)
$86.99 - $97.69
Buy Any Tank Get 20% off Entire Stock Substrate (excludes Gems)
Sign In & Enjoy Free Shipping Over $49
biOrb Bonsai Ball Artificial Aquarium Plant
3 colors
(0)
$16.59 - $16.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Amazonas Root Aquarium Ornament
2 sizes
(2)
$33.29 - $51.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Coral Reef Aquarium Ornament - Pink
(0)
$32.89
$54.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Coral Reef Aquarium Ornament - Blue
(0)
$37.69
$50.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Artificial Moss Aquarium Pebbles
3 colors
(0)
$11.99 - $22.19
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Coral Ball Aquarium Ornament Set
2 colors
(0)
$32.59 - $35.69
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Plate Corals & Button Polyps Aquarium Ornaments - 3pk
(0)
$29.39
$32.49
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
Extra 20% off online only with code SAVE20, see terms
+ 2 more
biOrb Artificial Aquarium Sea Fan - 19.5"
(0)
$21.49
$28.99
Extra 20% off online only with code SAVE20, see terms
Sign In & Enjoy Free Shipping Over $49
biOrb Multi-Cleaning Tool
(0)
$17.99
$19.99
Extra 20% off online only with code SAVE20, see terms
Save 35% On Your First Autoship Order!
+ 2 more
biOrb Artificial Aquarium Thistle & Fern Plant Set - 10"
(0)
$10.39
$15.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Ocean Aquarium Ornament Set
(0)
$59.99
$101.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Maintenance Kit
(0)
$35.19
$52.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 1 more
biOrb Starfish Aquarium Ornament - 3pk
(0)
$13.49
$18.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Sea Shell Aquarium Ornaments - 3pk
(0)
$11.99
$18.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Sea Star Rock Sculpture Aquarium Ornament
(1)
$38.59
$54.99
Buy 2 Get the 3rd Free Aquatic Ornaments (excludes Glofish)
10X points (20% back in savings) on all aquatic ornaments
+ 1 more
biOrb Artificial Aquarium Silk Plant Set - 14"
(0)
$20.39
$21.99
Extra 20% off online only with code SAVE20, see terms
Sign In & Enjoy Free Shipping Over $49
biOrb Artificial Aquarium Sea Fan - 11.5"
2 colors
(2)
$16.79 - $18.99
Sign In & Enjoy Free Shipping Over $49
biOrb Feather Fern Artificial Aquarium Plant Set - 10"
(0)
$12.99
$15.99
Sign In & Enjoy Free Shipping Over $49
biOrb Kelp Artificial Aquarium Plant Set
2 sizes
(0)
$11.49 - $15.59
Sign In & Enjoy Free Shipping Over $49
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Explore Our Extensive Range of Fish Supplies 

At PetSmart, we offer a comprehensive selection of supplies for both freshwater and marine fish enthusiasts. Whether you're setting up a new aquarium or maintaining an existing one, our range of products ensures your aquatic pets thrive. From aquarium decor to essential maintenance tools, find everything you need to create a vibrant underwater world. 

Freshwater and Marine Fish Supplies 

Our collection includes a variety of aquarium accessories and pet fish supplies designed to cater to the unique needs of both freshwater and marine environments. Explore our selection of aquarium decor to enhance the beauty of your tank, and discover top-quality marine aquarium supplies to support the health of your aquatic life. 

Essential Aquarium Maintenance 

Maintaining a healthy aquarium requires the right tools and knowledge. Our range of aquarium maintenance products includes everything from filters to water conditioners, ensuring your tank remains a safe and clean environment for your fish. Learn how to maintain pH levels and keep your aquarium filter running efficiently with our expert tips. 

Frequently Asked Questions (FAQs) 

What maintenance does a fish tank need? 
Regular maintenance is crucial for a healthy aquarium. This includes cleaning the tank, changing the water, and checking the filter and pH levels. 
Can I put tap water in my fish tank? 
Tap water can be used in your fish tank, but it should be treated with a water conditioner to remove harmful chemicals like chlorine. 
Should an aquarium filter be on all the time? 
Yes, an aquarium filter should run continuously to maintain water quality and provide a healthy environment for your fish. 
How to maintain pH level in an aquarium? 
To maintain the pH level in your aquarium, regularly test the water and use pH adjusters as needed. Consistent water changes also help stabilize pH levels.