Saltwater Fish Tanks

Sort
Filter
Rated 4.6 out of 5 stars
5
$224.37 Chewy Price
($16.03/gl) Price per Unit
$349.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.3 out of 5 stars
146
$99.98 Chewy Price
($10.00/gl) Price per Unit
$104.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 5 out of 5 stars
2
$193.68 Chewy Price
($14.35/gl) Price per Unit
$199.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.4 out of 5 stars
22
$129.99 Chewy Price
($4.49/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.7 out of 5 stars
50
$82.76 Chewy Price
($13.80/gl) Price per Unit
$89.30 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 3.3 out of 5 stars
19
$549.99 Chewy Price
($36.67/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.4 out of 5 stars
5
$279.00 Chewy Price
($11.63/gl) Price per Unit
$318.00 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

Rated 3.4 out of 5 stars
13
$164.99 Chewy Price
($11.00/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.2 out of 5 stars
26
$102.99 Chewy Price
($12.88/gl) Price per Unit
$154.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 3 out of 5 stars
1
$325.13 Chewy Price
($14.78/gl) Price per Unit
$361.25 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 4.2 out of 5 stars
52
$29.58 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4.2 out of 5 stars
25
$219.95 Chewy Price
$299.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.7 out of 5 stars
20
$99.99 Chewy Price
($5.00/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4 out of 5 stars
14
$87.97 Chewy Price
($17.60/gl) Price per Unit
$97.29 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

New

$254.99 Chewy Price
($63.75/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 5 out of 5 stars
5
$105.31 Chewy Price
($7.03/gl) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 4.2 out of 5 stars
30
$489.95 Chewy Price
($15.32/gl) Price per Unit
$549.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.6 out of 5 stars
20
$243.43 Chewy Price
($11.07/gl) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 2 out of 5 stars
2
$498.00 Chewy Price
($17.79/gl) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

Rated 3 out of 5 stars
13
$241.99 Chewy Price
($28.81/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.1 out of 5 stars
58
$19.99 Chewy Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 13 and Apr 16

Rated 3.8 out of 5 stars
13
$64.08 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

$329.99 Chewy Price
($13.75/gl) Price per Unit
$415.78 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 4.2 out of 5 stars
11
$56.99 Chewy Price
($5.70/gl) Price per Unit
$66.68 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 4.2 out of 5 stars
6
$11.47 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4.6 out of 5 stars
11
$36.69 Chewy Price
($18.35/gl) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

$275.01 Chewy Price
($21.16/gl) Price per Unit
$299.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

$282.15 Chewy Price
($14.11/gl) Price per Unit
$313.49 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 5 out of 5 stars
3
$105.99 Chewy Price
($25.61/gl) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 5 out of 5 stars
2
$49.99 Chewy Price
($9.09/gl) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 5 out of 5 stars
1
$222.56 Chewy Price
($11.13/gl) Price per Unit
$247.29 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 3.3 out of 5 stars
35
$13.29 Chewy Price
$17.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4 out of 5 stars
7
$39.70 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Rated 3.8 out of 5 stars
4
$8.56 Chewy Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 4 out of 5 stars
4
$317.24 Chewy Price
($14.42/gl) Price per Unit
$352.49 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Rated 4 out of 5 stars
14
$6.63 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Saltwater Fish Tanks

Dive into the vibrant world of marine life with a saltwater fish tank that brings the ocean to your home. Whether you're setting up your first nano reef or upgrading to a full-sized showpiece, saltwater aquariums come in a variety of shapes, sizes, and materials to suit your space and experience level. These tanks are built to handle the unique demands of marine environments and provide a stable habitat for your underwater crew. Before setting up a saltwater fish tank, consider the following essentials:

  • Tank size options: Beginners often start with tanks between 30–55 gallons for easier water stability
  • Tank shape: Rectangular tanks offer more surface area for oxygen exchange and aquascaping
  • Material choices: Glass and acrylic both work, but acrylic is lighter and offers clearer views
  • Starter kits: Some tanks come with built-in filtration, lights, or sumps to simplify setup
  • Upgrade potential: Look for tanks that can grow with your experience and livestock needs

Saltwater fish tanks CREATE a stunning focal point while offering a rewarding challenge for hobbyists. With the right equipment, research, and routine maintenance, you'll be well on your way to building a healthy marine ecosystem.

Frequently Asked Questions about Saltwater Fish Tanks

What size saltwater fish tank should a beginner get?

A beginner should consider a tank between 30 to 55 gallons. Smaller tanks can be more difficult to maintain due to rapid changes in water quality, while mid-sized tanks offer more stability and flexibility.

What shape of tank is best for a saltwater aquarium?

Rectangular tanks are generally best because they provide more surface area for gas exchange and easier access for maintenance. They also allow for better aquascaping and fish movement.

What equipment do I need to start a saltwater fish tank?

You'll need a tank, filtration system, heater, protein skimmer, lighting (especially for reef setups), salt mix, hydrometer or refractometer, substrate, and live rock or decor. A test kit is also essential for water monitoring.

Is a saltwater fish tank hard to maintain?

Saltwater tanks require more attention than freshwater tanks, especially during setup. However, with consistent maintenance, proper equipment, and a bit of research, they can be a manageable and rewarding hobby.