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    Free Shipping On $175+
  • FREE Shipping On $175+
  • 14-Day Low Price Guarantee
  • 14-Day Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
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Orders Over $175
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $175 ship FREE. Learn More
 
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you've purchased the item! Learn More
 
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 6 pm EST ship the same day! Learn More
 
  • Black November Black November
  • D-D Powerchrome T5 Bulbs D-D Powerchrome T5 Bulbs
  • Flipper Algae Magnets Flipper Algae Magnets
  • AquaMaxx BioMaxx biopellet reactors and media AquaMaxx BioMaxx biopellet reactors and media
  • Hamilton Cebu Sun Metal Halide + T5 HO System Hamilton Cebu Sun Metal Halide + T5 HO System
Digital Aquatics DP1 Master Dosing Pump
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Deal of the Day! Prodibio BIO DIGEST - 30 Vials
Reg.
$51.99
On Sale
$28.59

Saltwater Aquarium Supplies and Accessories

Popular Brands

Top Selling Aquarium Supply Brands Innovative Marine EcoTech Marine JBJ AquaticLife Red Sea Tunze Eheim Neptune Systems Ecoxotic Hydor Aquarium Pharmaceuticals API Two Little Fishies Digital Aquatics Kent Marine AquaMaxx SeaChem Coralife Kessil
Why Shop at MarineDepot.com?

Marine Depot sells aquarium supplies, nutrition and supplements to help you create and maintain a successful fish tank. We carry over 7,000 popular and hard-to-find saltwater aquarium fish supplies and freshwater aquarium supplies from top brands like Red Sea, JBJ, Hydor and EcoTech Marine. We are located in Garden Grove, CA and have shipped more than one million orders to over a half-million aquarium lovers since 1998.

Browse our online store and take advantage of our powerful site search to find the latest and greatest aquarium technology on the planet. We carry energy-efficient LED aquarium lighting and all sorts of aquarium filters, from a refugium to grow copepods and chaetomorpha to just about every type of protein skimmer on the market. We specialize in the sale of reef aquarium and saltwater aquarium supplies, so if you are shopping for saltwater fish food or T5 lighting to grow your coral to new heights, you've come to the right place. We have high-end Ecotech Radion light fixtures, Neptune Apex controllers as well as more affordable Hydor Koralia pumps.

There are plenty of reasons why you should shop at Marine Depot for your fish aquarium supplies online. All of our fish tank supplies are backed by a 60-day return policy. We also offer a Low Price Guarantee on all in-stock merchandise. If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you've purchased the item! We have incredibly fast shipping—so fast, in fact, that 99% of orders placed before 6PM EST ship the same day. And, orders over $175 ship for free! We offer new Marine Depot coupon codes every month and offer deep discounts on saltwater fish supplies and planted aquarium supplies to our email newsletter subscribers. Our customer support staff, The Reef Squad, are aquarium experts who can offer you free technical support or sales advice via telephone, email and Live Chat. They can share what the most popular fish tank supplies are for your reef tank and help guide you, step-by-step, through the installation of new equipment. We love what we do and are more than happy to share our knowledge with you. We firmly believe our company is the most reputable dealer of discount aquarium supplies on the web. Our aquarium store has an A+ rating with the Better Business Bureau, the Customer Certified designation on BizRate and we are an Elite Member of ResellerRatings. Customer satisfaction is our #1 priority! We invite you to experience the MarineDepot.com difference today.

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Testimonials
Nov 11, 2014
"The site is easy to navigate, the prices are competitive, and when I've called Customer Service, they have been more than helpful."
Alijean

Nov 5, 2014
"Marine Depot continues to set the benchmark for online shopping."
cubera

Nov 4, 2014
"Love the company and they have a great selection and excellent customer service."
Alisha

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