Two Easy Ways to Start Earning Rewards!
Earn 2X Pals Rewards points at Petco
when you use Petco Pay!
Enter Location
Get It Today
Aqueon Standard Glass Aquarium Tank 40 Gallon Breeder
$109.99
JBJ White 65 Gallon Rimless Flat Panel Aquarium Kit
$1,575.00
JBJ Black 65 Gallon Rimless Flat Panel Aquarium Kit
$1,622.25
Aqueon Rectangle Aquarium 60 Breeder Tank
$189.99
Imagitarium 3.7 Gallon PRO Deluxe Freshwater Aquarium
$82.39
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Aqueon Standard Glass Aquarium Tank 75 Gallon
$249.99
Imagitarium Frameless Freshwater Aquarium Kit, 6.8 GAL
$99.99
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Aqueon LED 8.75 Gallon Shrimp Aquarium Kit
$149.99
Aqueon Standard Glass Aquarium Tank 20 Gallon Long
$49.99
Hagen Fluval 5 Gallon Spec V Aquarium Kit, Black
$94.92 was $129.99
Aqueon Standard Glass Aquarium Tank 10 Gallon
$19.99
Aqueon Standard Glass Aquarium Tank 29 Gallon
$79.99
Aqueon Standard Glass Aquarium Tank 55 Gallon
$149.99
Aqueon Standard Glass Aquarium Tank 20 Gallon High
$49.99
Aqueon Versa Top 30" X 12" Hinged Glass Aquarium Top
$22.99
Aqueon Versa Top 20" X 10" Hinged Glass Aquarium Top
$16.99
Aqueon Standard Glass Aquarium Tank 5.5 Gallon
$18.99
Aqueon MiniBow LED Desktop Fish Aquarium Kit in Black
$46.99 – $69.99
Aqueon Versa Top 16" X 8" Hinged Glass Aquarium Top
$16.99
Marineland 5 Gallon Portrait Glass LED Aquarium Kit
$62.57 was $88.99
GloFish Hinged Cycle Light and Hidden Filtration Aquarium Kit 5 Gallons
$80.04 was $97.99
Imagitarium Pet Keeper for Aquarium Fish, Small
$7.99
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Imagitarium Pet Keeper for Aquarium Fish, Large
$15.99
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Imagitarium Freshwater Cube Aquarium Kit
$82.39
Imagitarium Semi-Hexagonal Aquarium Kit, 6.7 GAL
$61.79
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Aqueon Standard Glass Aquarium Tank 15 Gallon
$49.99
Hagen Fluval Spec V Aquarium Kit in White
$94.92 was $121.99
Aqueon Frameless Cube Aquarium
$37.99 – $308.99
Aqueon Standard Glass Aquarium Tank 2.5 Gallon
$16.99
Coralife LED Biocube Aquarium LED
$339.99 – $409.99
Fluval 5 Gallon EVO V Marine Aquarium Kit
$123.59 was $139.99
Imagitarium Pet Keeper for Aquarium Fish, Medium
$10.99 was $11.99
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Imagitarium Freshwater Aquarium
$54.99
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Imagitarium Freshwater Globe Kit, 3.1 GAL
$44.99
Buy a Tank or Stand by Imagitarium, Get 15% off Equipment & Décor
Aqueon MiniBow LED Desktop Fish Aquarium Kit in White
$69.99
Hagen Fluval 2.6 Gallon Spec III Aquarium Kit, Black
$79.99 was $109.99
Petco Deluxe Plastic Drum Betta Bowl
$10.99
Although large aquariums can be beautiful, these big fish tanks aren’t just for show. They also provide a healthier environment for your fish, coral, and other underwater plants. Even if you don't currently have many fish, large aquariums offer you the option to add more when you're ready. No matter who’s living in your aquarium, it’s important to make sure that someone is committed to cleaning and feeding its inhabitants. Big fish tanks will require different equipment depending on what plants and animals live inside. For example, large saltwater aquariums with coral will need appropriate lighting and powerheads to simulate an ocean environment.
No fish tank is “too big” as long as the location of your tank can hold its weight. For fish that enjoy small spaces, add live or artificial plants, driftwood, rocks and caves, or other decor to fill some space.
The best fish tank can vary by the size, type, and amount of fish you plan on placing in the habitat. You may think as a beginner smaller is better, but larger tanks may be easier to maintain as they are less susceptible to changes in water chemistry.
Aquariums can range in size from a quarter gallon tank to over 100 gallons. You can purchase an aquarium in any size you could think of, but it may have to be custom made. At Petco, we offer aquariums up to 10 gallons, 20 to 39 gallons, and 40 gallons and larger.
The best tank for a beginner will vary depending on the size, type, and amount of fish you plan on having in your tank. You may think smaller is better but that’s not always the case. Bigger tanks may be easier to maintain as there is less room for errors and they are less susceptible to changes in water chemistry. Check out our aquatics checklist and learn what you’ll need to start your own aquarium.