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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
FREE Shipping on
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

Service. Customer Service.

We're's Reef Squad. Our job? We scour the world to find the most popular and hard-to-find aquarium products so you don't have to. And we ship them to you fast. How fast? 99.9% of orders ship the same day they are placed.

Need technical support? No problem. Reef Squad members each have more than 10 years of hobby-related experience, so we can walk you through the setup of a new calcium reactor or help you adjust the air intake on your protein skimmer.

But we don't stop there. Our award-winning customer service, Hassle-Free Returns and Low Price Guarantee ensure you'll always get the best value, the best service and the best support. That's why we're the team that aquarium hobbyists trust.

Have questions? We have answers! Contact us today!
Marine Depot Unique Selling Propositions Huge Selection - Over 30 categories, 130 brands and 6,000 aquarium products… all from one store. We can even special order merchandise if we don't have what you need in stock. Same Day Shipping - 99.9% of orders placed before 6PM EST are shipped the same day. And, orders over $175 are shipped for free. Low Price Guarantee - At, we offer a Low Price Guarantee on all in-stock merchandise. Bizrate Circle of Excellence Site - Reviews at Bizrate Hassle-Free Returns - Our generous 60-day return period ensures you'll have ample time to determine if you've chosen the right product.
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May 6, 2015
"First of all, the employees know their products and this makes a great service. Second they have good website: informative, easy to navigate and good information and videos. This makes it a good place for all kinds of people in the hobby."

May 5, 2015
"Good selection. I've found sizes other stores don't offer. The shipping prices are very reasonable. I save by shopping here. Very satisfied. Thank you."

May 5, 2015
"Being local means I usually receive my shipments the next day, regardless of the shipping type selected. MD maintains my purchase history, so even if I don't know the type of bulbs I need, or replacement parts, they have what I purchased previously on file."

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