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Everything you need for happy aquatic life

Marine & Freshwater

(78 results)
Fluval® Plant Stratum Aquarium Substrate
(123)
$18.79
$28.99
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Fluval® FX6 Aquarium Canister Filter
(212)
$419.99
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Fluval® 407 Performance Aquarium Canister Filter
(124)
$269.99
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Fluval Plant & Shrimp Stratum
(8)
$36.99
$49.99
Buy Any Tank & Save 20% OFF All Substrate, Sand & Gravel! (excludes gems)
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+ 1 more
Fluval AC Power Filter
4 sizes
(115)
$42.99 - $99.99
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Fluval FX2 Aquarium Canister Filter
(38)
$319.99
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Fluval® FX4 Aquarium Canister Filter
(129)
$359.99
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Fluval® 307 Performance Aquarium Canister Filter
(101)
$199.99
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Fluval® 207 Performance Aquarium Canister Filter
(85)
$169.99
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Fluval® Submersible Aquarium Heater
(250)
$32.99 - $38.99
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Fluval® Pro-VAC Powered Aquarium Gravel Cleaner
(129)
$66.99
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Fluval® Plant 3.0 Bluetooth LED
4 sizes
(58)
$152.99 - $272.99
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Fluval AC20 Power Filter
(8)
$35.99
$39.99
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FLUVAL Active Carbon Insert 3-Pack
3 sizes
(12)
$6.99 - $12.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
Save 35% On Your First Autoship Order!
+ 2 more
Fluval® FX5 Filter Foam Inserts Aquarium Filter Media
(5)
$11.49
$17.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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Fluval® M-Series Submersible Heater
(156)
$30.99
$36.99
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Fluval® AQUASKY LED Aquarium Light - 18 Watt
(56)
$129.99
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Fluval® AQUASKY LED Aquarium Light - 35 Watt
(46)
$179.99
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Fluval® Quick Clear Water Polishing Pad 306/307/406/407 6PK
(16)
$9.99
$10.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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Fluval® BioMax Media
(20)
$10.39
$22.99
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+ 2 more
Fluval® UltraGrade Carbon
(10)
$6.09
$12.99
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Fluval Bio-FX Biological Filter Media - 5 L
(4)
$22.99
$25.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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+ 2 more
Fluval® Sea Mini Protein Skimmer
(10)
$38.89
$52.99
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Fluval® Underwater 3 Filter
(20)
$29.39
$74.99
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FLUVAL AC BioMax Insert 1-Pack
3 sizes
(14)
$2.99 - $13.59
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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+ 2 more
FLUVAL Bio-Foam Filter Insert 1-Pack
4 sizes
(14)
$3.49 - $7.49
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+ 2 more
Fluval® Bug Bites Tropical Flakes
(39)
$5.99
$9.99
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+ 1 more
FluFluval® Quick Clear Water Polishing Pad 106/107/206/207 3PK
(14)
$3.79
$6.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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+ 2 more
Fluval® Pre-Filter Premium Mechanical Aquarium Filtration - 750g
(2)
$6.69
$15.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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+ 2 more
Fluval FX2 Bio Foam Max
(0)
$19.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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+ 2 more
Fluval® Marine Nano LED Light w/Bluetooth
(6)
$109.99
Free Same-Day Delivery, No Order Minimum!
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Fluval® 3 in 1 Waster Remover
(13)
$8.99
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Fluval® FX6 Service Kit
(1)
$49.99
$55.99
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Fluval® Spray Bar Kit
(14)
$29.99
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Fluval® Bug Bites Color Enhancing Flakes
(32)
$9.99
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+ 1 more
Fluval® Prism Multi-Color LED Spotlight
(18)
$44.99
$49.99
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Fluval® AquaSky LED Aquarium Light - 12 Watt
(34)
$89.99
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Fluval Phosphate Resin Infused Pads
(4)
$6.09
$9.99
Online Only! Buy 3 Get the 4th FREE on Aquatic Media!
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+ 2 more
Fluval® 207/307 & 206/306 Bio-Foam Max Filter Pad - 2pk
(6)
$4.49
$7.99
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Fluval® AQUASKY LED Aquarium Light - 27 Watt
(28)
$149.99
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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.