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(1153 results)
Top Fin® Essentials Aquarium Starter Kit
8 sizes
(4252)
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Aqueon Standard Glass Rectangle Aquarium
7 sizes
(291)
$11.49 - $94.99
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Fluval® FX6 Aquarium Canister Filter
(206)
$369.99
$419.99
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Marineland Open Glass Aquarium
3 sizes
(168)
$14.99 - $149.99
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Top Fin® Fascinate Column Starter Kit
(310)
$44.99
$89.99
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Top Fin® Large Power Filter Cartridges
(279)
$17.99
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Fluval® Plant Stratum Aquarium Substrate
(121)
$23.69
$28.99
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Seachem® Prime® Aquarium Water Conditioner
4 sizes
(369)
$3.79 - $16.69
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+ 1 more
Marineland® High Definition LED Ensemble - 75 Gallon
(570)
$499.99
$799.99
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Fluval® FX4 Aquarium Canister Filter
(125)
$309.99
$359.99
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Fluval® 407 Performance Aquarium Canister Filter
(124)
$229.99
$269.99
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Fluval FX2 Aquarium Canister Filter
(36)
$269.99
$319.99
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Top Fin® 36 Gallon Aquarium & Stand Ensemble Combo
(70)
$249.99
$399.99
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Fluval® 307 Performance Aquarium Canister Filter
(101)
$189.99
$199.99
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Top Fin® Bow Front Aquarium Starter Kit -  36 Gallon
(468)
$155.99
$194.99
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Fluval® 207 Performance Aquarium Canister Filter
(81)
$152.99
$169.99
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Top Fin® Captivate Starter Kit
(416)
$107.99
$134.99
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Instant Ocean® Sea Salt
2 sizes
(83)
$21.19 - $52.99
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Top Fin® Mystic Oak Finish Aquarium Stand
3 sizes
(44)
$59.99 - $89.99
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+ 1 more
API® Freshwater Aquarium Master Test Kit
(293)
$35.99
$39.99
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Fluval Plant & Shrimp Stratum
(8)
$46.49
$49.99
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CaribSea Super Naturals Aquarium Sand - Moonlight White
(102)
$19.99
$29.99
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Fluval AC Power Filter
4 sizes
(107)
$42.99 - $99.99
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Aqua Natural Aquarium Sand - Galaxy Black
2 sizes
(91)
$14.39 - $24.99
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Top Fin® PF-S Silenstream Aquarium Filter Cartridges
2 sizes
(234)
$8.99 - $17.99
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Top Fin® Silenstream™ Small Filter Cartridges
(65)
$14.99
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CaribSea Super Naturals Aquarium Sand - White
(22)
$19.99
$27.99
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Fluval® Submersible Aquarium Heater
(242)
$32.99 - $38.99
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Top Fin® Compact Aquarium Heater
3 sizes
(485)
$14.59 - $33.99
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+ 1 more
Top Fin® Element EF-S Filter Cartridges
3 sizes
(373)
$8.99 - $17.99
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Top Fin® Aquarium Hinged Glass Lid
7 sizes
(216)
$16.99 - $58.99
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Aqua Natural Aquarium Substrate - Gold Pearl
(21)
$5.59
$14.99
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Top Fin® Silenstream™ Aquarium Power Filter
5 sizes
(1511)
$18.99 - $49.99
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+ 1 more
API® E.M. Erythromycin Fish Bacterial Infection Treatment
(75)
$21.98
$25.08
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Top Fin® Premium Aquarium Gravel - Classic Beach
(66)
$7.99
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Aqua Natural Aquarium Sand - White
(68)
$14.39
$14.99
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Omega™One Frozen Bloodworms
(186)
$9.99
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API® Stress Coat Tap Water Aquarium Conditioner
6 sizes
(359)
$2.29 - $37.58
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Seachem® Purigen® Premium Synthetic Absorbent
2 sizes
(54)
$9.19 - $15.79
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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.