Petsmart Fish Tank Supplies

PetSmart carries a solid range of fish tank supplies covering the basics you need to set up and maintain most freshwater aquariums. You'll find tanks, filters, heaters, lights, substrate, decorations, water conditioners, test kits, fish food, and medications across most store locations. Their selection leans heavily toward beginner and mid-range products from major brands, with some specialty items depending on the store.

This guide covers what PetSmart actually stocks in their fish department, how prices compare to online retailers, which products are worth buying there versus ordering online, and what you won't find at most locations. I'll also cover the Aquatics team's level of expertise, which matters when you need advice and not just a bag of fish food.

What PetSmart Stocks in Fish Tank Supplies

PetSmart's fish section is organized around the major categories any aquarium keeper needs.

Tanks and Starter Kits

PetSmart carries a range of tank sizes, primarily Aqueon and Tetra-branded products. Common sizes in stock include 5, 10, 20, 29, 37, and 55-gallon tanks, with some locations stocking 75-gallon options. They sell a lot of complete starter kits that bundle a tank with a filter, light, and heater.

The Aqueon 10-gallon Starter Kit and the Tetra 20-gallon ColorFusion Kit are perennial staples. These kits are priced at $50 to $120 depending on size and include functional equipment. They're not high-end, but they work and make setup simple for beginners.

Tanks above 75 gallons are rare in physical PetSmart locations. If you need a 100-gallon or larger, you're ordering online or visiting a specialty store.

Filters

PetSmart stocks hang-on-back filters primarily from Aqueon, Tetra, and Marineland. The Aqueon QuietFlow series (30, 50, 75, 110) is commonly available. Tetra Whisper filters are also stocked in most locations.

You won't find high-end canister filters like Fluval FX6 or Eheim Professional units at most PetSmart locations. Those tend to be available online only. The HOB filters at PetSmart are adequate for most beginner and mid-size freshwater setups.

Heaters

The selection here is reliable. Aqueon Pro heaters, Tetra heaters, and Fluval E-series submersible heaters appear in most stores. Prices run from $15 to $60 depending on size and brand. The Aqueon Pro 100W at $25 to $30 is a strong value if you need a heater quickly and can't wait for online delivery.

Lighting

PetSmart stocks Aqueon LED strip lights, Fluval Plant 3.0 (sometimes), and various Tetra LED hoods. Selection here is more limited than online. If you're setting up a planted tank and need a specific spectrum, you'll likely need to order online. For basic freshwater fish viewing, the lights in stock are adequate.

Substrate and Decor

This is where PetSmart genuinely performs well. They carry a wide variety of substrates including Aquarium gravel in multiple colors, CaribSea Eco-Complete for planted tanks, sand, and specialty substrates. Decorative ornaments, artificial plants, rocks, and driftwood (dried, not fresh) are available in good variety.

Aquarium decorations are one category where the in-store experience has a real advantage over online shopping. You can see exact colors, sizes, and textures before buying.

Water Conditioners and Chemicals

Seachem Prime, API Stress Coat, API Water Conditioner, Stress Zyme, and various Tetra products are consistently stocked. API test kits, ammonia detectors, and liquid test kits are available. Seachem Stability for tank cycling is usually in stock.

This category is one of the strongest at PetSmart for brand selection.

Medications

PetSmart keeps a decent medication selection including API General Cure, Melafix, Pimafix, Kanaplex (sometimes), and Ich-X. For common ailments, you'll usually find something useful. For more specific medications like metronidazole or levamisole, you'll need a specialty retailer or online source.

How PetSmart Prices Compare to Online Retailers

Across the board, PetSmart prices run 15 to 35 percent higher than Amazon or Chewy for identical products. This isn't surprising for a brick-and-mortar retailer.

Some examples: - Seachem Prime 500ml: $15 to $18 at PetSmart, $12 to $14 on Amazon. - API Master Test Kit: $35 to $40 at PetSmart, $25 to $30 online. - Aqueon QuietFlow 30 Filter: $30 to $35 at PetSmart, $22 to $28 online.

The premium is the price of immediate availability. If your filter dies on a Sunday afternoon, PetSmart's $5 markup is not the issue.

For a broad comparison of online sourcing options, our guide to the Best Online Fish Supply Store covers the major retailers and where they excel.

What to Buy at PetSmart vs. Online

Certain things make sense to buy at PetSmart. Others don't.

Worth Buying at PetSmart

Emergency supplies: When something breaks or your fish is sick, driving to PetSmart beats waiting two days for Amazon. Heaters, air pumps, medications, and water conditioners are worth the price premium when you need them now.

Substrate and decorations: The ability to see exact colors and sizes in person reduces the chance of disappointment. Return shipping on a bag of colored gravel that looks different than the photo isn't worth the hassle.

Live plants (with caution): Some PetSmart locations maintain a reasonable stock of easy aquarium plants like Java fern, Anubias, and Amazon swords. Quality varies significantly by store. Look for plants with green, healthy leaves and no obvious algae or melting.

Test kits and conditioners: When you're getting started and need everything at once, buying conditioners and test kits locally saves time.

Better to Buy Online

Filters above basic HOB models, heaters in specialty sizes, high-output lighting for planted tanks, CO2 equipment, canister filters, UV sterilizers, specialty substrates like Seachem Flourite or ADA Aqua Soil, and anything above 75 gallons in tank size.

If you're looking at air supply equipment for your tank, our review of oxygen machine for fish tank price gives context on what's available online versus locally.

PetSmart's Aquatics Staff: Realistic Expectations

PetSmart staff expertise in the aquatics department varies significantly by individual employee and store. Some locations have genuinely knowledgeable team members who keep their own tanks and can give real advice. Others have staff whose primary responsibility is stocking shelves and who know little beyond basic care.

The consistent training that PetSmart provides covers the basics: nitrogen cycle, water testing, common diseases, and appropriate fish combinations for beginner setups. For those topics, store staff can usually help.

For complex questions about planted tank chemistry, reef keeping, breeding specific species, or troubleshooting unusual water chemistry, you'll have better luck at a dedicated local fish store (LFS) or online forums like Reddit's r/Aquariums or MonsterFishKeepers.

PetSmart also offers the Vet Clinics in-store at some locations, but these handle dogs and cats, not fish. Fish health questions are handled by the aquatics team, not veterinary staff.

PetSmart Rewards and Sales

PetSmart's Treats loyalty program earns points on purchases that can be redeemed for discounts. Points earn rate is 8 points per $1 spent, with 100 points equal to $1 in reward value. That's an effective 8 percent back if you shop PetSmart regularly.

They run periodic sales on aquarium equipment, particularly around "Dollar per Gallon" sales run by Petco (PetSmart does similar but not always labeled the same way). Fish tank sales typically reduce tank prices dramatically: a 40-gallon breeder that normally costs $75 may sell for $30 to $40. These sales are worth watching if you're planning a tank purchase and aren't in a rush.

Signing up for PetSmart email alerts and the Treats program is worthwhile if you shop there regularly.

FAQ

Does PetSmart carry saltwater fish and reef supplies?

Some locations have a small saltwater section with basic reef equipment and fish. However, the selection is much more limited than what a dedicated reef or marine store carries. For serious saltwater or reef setups, online retailers like Bulk Reef Supply or Marine Depot are far better options.

Can I return fish to PetSmart?

PetSmart has a 14-day satisfaction guarantee on fish if you bring a water sample. If fish die within 14 days and your water tests within acceptable parameters, they'll typically offer a replacement or store credit. This policy varies by store and manager discretion.

Does PetSmart have a dollar per gallon sale?

PetSmart occasionally runs aquarium sales but doesn't always market them as "Dollar per Gallon" (that's more associated with Petco). They run tank sales with discounts that vary. Check your local store's flyer or the PetSmart website for current promotions.

Is PetSmart a good place to start an aquarium?

For a basic freshwater setup, yes. You can get everything you need in one visit: a starter tank kit, substrate, decorations, water conditioner, and test kit. For more advanced setups, planted tanks, or saltwater systems, you'll need to supplement PetSmart's selection with online purchases.

Key Takeaways

PetSmart is a reliable source for aquarium basics, emergency replacements, substrate, decorations, water conditioners, and common medications. Prices run 15 to 35 percent above online retailers, which is the cost of immediate availability. For advanced equipment, specialty lighting, canister filters, and large tanks, online shopping gives you dramatically better selection and price. Use PetSmart's Treats rewards program if you shop there regularly, and sign up for sale alerts to catch periodic tank deals worth planning around.