Aquarium Accessories - Fish Tank Decorations, Gravel & Substrate | PetSmart

Now that you’ve got your fishy’s new home up and running, it’s time to furnish it! Make their tank beautiful and fun to explore with aquarium accessories from PetSmart. You can show off your creative side and give them an environment they love. Choose a fun theme like a shipwreck or even decorate their aquarium for the holidays. From sand and gravel to backgrounds and aquarium ornaments, PetSmart has fish tank décor that will help your finned friends live their best life.

If you’re ready to add a little pizzazz to your fish tank, shop PetSmart’s collection of fish tank décor and aquarium accessories, including:

Aquarium Substrate
Artificial Plants
Fish Tank Backgrounds
Gravel, Sand and Stones
Live Plants
Aquarium Ornaments
Plant Food and Fertilizers
Filters and Pumps

Need to stock up on other essentials for your aquatic companions? Shop PetSmart’s other fish supplies for great prices from brands you trust. Perhaps you haven’t brought home your new fishy friend yet. PetSmart also has a great selection of live fish in our stores to choose from!

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.

Frequently Asked Questions (FAQs)

Where can I buy aquatic plants?

If you’re ready to add a little pizzazz to your fish tank, shop PetSmart’s collection of fish tank décor and aquarium accessories, including aquatic plants

Do I need to decorate my fish tank?

Decorating your fish tank helps create an environment in which your aquatic pets can explore and enjoy themselves. Use plants and fish tank décor to show off your personality and give your fish something they'll love.

What accessories should I put in my fish tank?

Accessories you should put in you fish tank include aquarium plants, fish tank décor, substrate, backgrounds, filters, pumps, heaters, lighting and more.

Legit Script

Save 40% on your first Autoship order up to a maximum savings of $20.00 and 5% on all recurring orders. Exclusions apply. Eligible products only. See product page for details. Offer not valid on services, gift cards, gift certificates, previous purchases & charitable donations. Must be signed in to your Treats account to receive discount. Savings will automatically reflect in shopping cart with purchase of qualifying product and enrollment in Autoship. Offer may not be combinable with other promotional offers or discounts. Treats members receive free shipping on select orders over $49.00, prior to taxes & after discounts are applied. Additional terms apply. See petsmart.com/help for details. Prices & selection may vary. While supplies last. Quantities may be limited and deliveries may be delayed. Offer valid 06/02/2025-06/04/2025.

*For all offers listing a percent or dollar amount off regular price for individual products or categories of products: Eligible products only. Exclusions may apply. While supplies last. Quantities may be limited. Prices & selection may vary by store & online. Deliveries may be delayed. Offer may not be combinable with other promotions offers or discounts. Terms and conditions of an offer are subject to change at the sole discretion of PetSmart. See offer on site for end date. If the offer is a BUY/GET offer: Discount taken on lowest priced item(s) purchased. Mix and match not allowed between offers. Some offers require a minimum quantity purchase to receive discount. If the offer is a sitewide SPEND/GET offer: Transaction total is prior to taxes & shipping & after discounts are applied. Promo code may be required and should be entered upon checkout. See product page to determine eligibility and for complete offer details. If the offer is an EXTRA SAVINGS offer: Valid on select sale & online prices for merchandise. Enter promo code at checkout. See product page to determine eligibility and for complete offer details. For TREATS REWARDS offers: All bonus points offers must be activated in your Treats Rewards account prior to purchase. Must be signed in to your Treats Rewards account online or use membership ID in stores at checkout. See offer card in your Treats Rewards account for complete offer details.

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Terms & Conditions: Save 35% on your first Autoship order up to a maximum savings of $20.00 and 5% on recurring orders. Must be signed in to your Treats Rewards account to receive discount. Savings will automatically reflect in shopping cart with purchase of qualifying product and enrollment in Autoship. Exclusions apply. Eligible products only. See product page to determine eligibility. Not valid on services, gift cards, gift certificates, previous purchases & charitable donations. Offer may not be combinable with other promotional offers or discounts. Autoship terms and conditions apply. Treats Rewards members receive free shipping on select orders over $49.00, prior to taxes & after discounts are applied (additional terms apply). Prices & selection may vary. While supplies last. Quantities may be limited and deliveries may be delayed.

Terms & Conditions: Treats Rewards members enjoy Free Standard Shipping on select orders over $49. Must be signed into your Treats Rewards account prior to purchase. Transaction total is prior to taxes & after discounts are applied. Savings will automatically reflect in shopping cart with the purchase of qualifying merchandise. Valid only on orders shipped within the contiguous 48 U.S. states, military APO/FPO addresses and select areas throughout Canada. Offer not valid on all or select products in the following categories: live pets, canned, fresh or frozen foods, select cat litters. Terms and conditions of this offer are subject to change at the sole discretion of PetSmart. Delivery may be delayed due to acts beyond our reasonable control, which may include, but are not limited to, weather, strikes, power outages, shutdowns, local, provincial or federal governmental actions, and other similar acts. Delivery speeds will be delayed for orders that include Veterinary Authorized Food, Pharmacy, and Dropship items or to customer addresses such as Alaska, Hawaii, and Puerto Rico. Offer valid on PetSmart.com.

Terms & Conditions: Free Same-Day Delivery is available in most areas. Eligible products only. Exclusions apply. See product page to determine eligibility. While delivery is contact-free, we recommend being home during the delivery window to bring perishable items inside right away. Prices & selection may vary in stores & online. While supplies last. Quantities may be limited. See www.petsmart.com/help or store associate for more details.

Terms & Conditions: Curbside orders must be picked up two hours prior to store closing time. In store pickup available during all store hours. Orders must be placed two hours prior to pickup to receive same day. Store hours may vary. Check your local store for details & current store hours. Prices & selection may vary by store & online. While supplies last. Quantities may be limited. See www.petsmart.com/help or store associate for more details.