Aquarium Substrate

(52 results)
Fluval® Plant & Shrimp Stratum Aquarium Substrate Planted Tank Substrate Shrimp Substrate
3 sizes
(139)
$15.99
$17.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
CaribSea Super Naturals Aquarium Sand - White Fish Tank Sand
(39)
$23.79
$27.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Aquarium Sand - Black - Fish Tank Substrate - 5-20 lb
2 sizes
(6)
$9.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
Top Fin® Premium Aquarium Gravel - Classic Beach - Fish Tank Substrate - 5 lb
(68)
$7.99
$8.79
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Aqua Natural Aquarium Sand - White Fish Tank Sand
(73)
$13.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Premium Aquarium Gravel - Black & Neon - Fish Tank Substrate - 2-25 lb
3 sizes
(72)
$4.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Caribbean Sea Mix - Fish Tank Substrate - 5-25 lb
2 sizes
(56)
$6.79
$7.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
CaribSea African Cichlid Mix Aquarium Substrate Cichlid Tank Substrate
(43)
$18.94
$29.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
CaribSea Super Naturals Premium Aquarium Substrate Fish Tank Substrate
(65)
$23.79
$29.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Aquarium Gravel - River Rock - Fish Tank Substrate - 5-25 lb
2 sizes
(8)
$7.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
Top Fin® Aquarium Gravel - Midnight Black - Fish Tank Substrate - 5-25 lb
2 sizes
(18)
$7.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
Top Fin® Aquarium Sand - White - Fish Tank Substrate - 5-20 lb
2 sizes
(12)
$9.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
Activ-Flora Floracor Black Planted Aquarium Substrate Planted Tank Substrate
(25)
$20.80
$24.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Aqua Natural Quartz Aquarium Gravel - Black Fish Tank Gravel
(68)
$25.19
$27.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Brown & White - Fish Tank Substrate - 25 lb
(42)
$25.99
$28.59
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Bright White - Fish Tank Substrate - 2-25 lb
3 sizes
(72)
$4.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Deep Blue - Fish Tank Substrate - 5-25 lb
2 sizes
(63)
$7.99
$8.79
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Aqua Natural Aquarium Sand - Galaxy Black Fish Tank Sand
(101)
$13.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Aqua Natural Aquarium Gravel - Midnight Pearl Fish Tank Gravel
(34)
$25.19
$27.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Aqua Natural Aquarium Gravel - Gold Pearl Fish Tank Gravel
(40)
$25.19
$27.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
CaribSea Aragonite Aragamax Select Substrate Saltwater Reef Substrate
(43)
$21.15
$21.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Fluval® Betta Fish Stratum - Aquarium Fish Tank Substrate - 1.76 lb / 0.8 kg
(0)
$5.99
$8.79
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Save 25% on select Fluval betta products, price displayed
Top Fin® Premium Aquarium Gravel - Green Mix - Fish Tank Substrate - 5 lb
(61)
$7.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Mardi Gras Mix - Fish Tank Substrate - 2-25 lb
3 sizes
(35)
$3.59
$4.99
Options from
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Quality Aquarium Gravel - Pebble Beach - Fish Tank Substrate - 2 lb
(20)
$4.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Glass Aquarium Décor - Glow in the Dark - Aquarium Stones - Fish Tank Decor
(38)
$4.99
$5.49
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Aquarium Gravel - Nutmeg - Fish Tank Substrate - 5 lb
(4)
$7.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
Fluval® Bio-Stratum Volcanic Aquarium Soil, Powder Format, 4.4 kg (8.8 lb)
(6)
$39.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Sign In & Enjoy Free Shipping Over $49
Aqua Natural Pewter Black Gravel 10lb Fish Tank Gravel
(4)
$14.69
$14.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
Aqua Natural Aquarium Substrate - Midnight Pearl Fish Tank Substrate
(6)
$14.69
$14.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Lavender - Fish Tank Substrate - 5 lb
(6)
$7.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Pink & Purple - Fish Tank Substrate - 5 lb
(120)
$7.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Raspberry Red - Fish Tank Substrate - 5 lb
(6)
$7.99
$8.79
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Premium Aquarium Gravel - Blue, Green & Purple - Fish Tank Substrate - 5 lb
(4)
$7.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
CaribSea Super Naturals Aquarium Gravel - Snowy River Fish Tank Gravel
(20)
$24.99
$27.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
CaribSea LifeRock™ Aquarium Rock Saltwater Reef Substrate Aquascaping Rock Decor
(22)
$119.99
$150.00
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
CaribSea Aragalive in Fiji Pink Saltwater Reef Substrate
(16)
$29.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 1 more
GloFish® Aquarium Gravel Fish Tank Gravel
4 colors
(134)
$8.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
Top Fin® Aragonite Aragamax Oolite Aquarium Sand & Fish Tank Substrate - 30 lb
(51)
$29.99
$32.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
CaribSea Ocean Direct Caribbean Live Aquarium Sand Saltwater Reef Substrate Fish Tank Sand
(69)
$9.09
$9.99
Earn $10 back in savings (5,000 points) when you spend $39+ with Free Same-Day Delivery thru 11/8. One-time use.
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
+ 2 more
  1. 1
  2. 2
Creating the best habitat for your pet fish is an important part of their care. Finding the right aquarium substrate for fish matters so that your aquatic friend can thrive in their home. Pet parents can find the best selection of aquarium/fish tank substrate at PetSmart. Here, we want to help you build the perfect setting for your fish to swim around in. PetSmart’s selection of fish tank substrate includes options like: 
Plant Aquarium Substrate
Flourite Substrate
Smooth Glass Substrate
Colorful Fish Tank Substrate
And More 

You are sure to find the exact substrate you need for your fish at PetSmart. Need something else for your pet fish while you’re here? We also sell other fish tank supplies including artificial plants for aquariums, live plants for aquariums, fish tank backgrounds, gravel, sand and stone for aquariums, fish tank ornaments, plant food/fertilizer, fish tank filters/pumps, live fish, and more. 
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see what items are eligible.