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  • 14-Day Low Price Guarantee
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FREE Shipping on Orders Over $175
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
14-Day Low Price Guarantee
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
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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
Celebrating 10-years of Outstanding Service
Celebrating 10-years of Outstanding Service
Ken Wong had a vision in December of 1997 to create an online pet store that catered exclusively to the aquarium hobbyist. Ten years later, Ken’s vision has evolved into the internet’s flagship marine and reef aquarium destination. Marine Depot had humble beginnings, particularly in the early years. Ken wore many hats, including customer service rep, tech support & IT guy, accountant and order packer. In 1998, Marine Depot made its online debut and, in 1999, moved from Ken’s garage into a 1,000 square foot warehouse location. Today, Marine Depot occupies two warehouse locations with a combined square footage of 24,500 and ships approximately 98% of orders the same day they’re placed. As we continue to grow, we vow to remain dedicated to the marine hobbyist and emphasize quality information and customer service over low margins.
Featured Products
Prices valid through 11/23/2007
IceCap 250 Watt Electronic Metal Halide/ HQI Ballast
Reg. Price $129.99
Sale Price $110.00
Save $20, 15% Off
Tom Aquatics Rapids Pro Series Canister Filters
Starts at $150.00
Save up to 40%
48 inch 6x54W Sunlight Supply Elite Tek Light HO Fluorescent Lighting Fixture - Cool Blue Limited Ed
Reg. Price $429.99
Sale Price $310.00
Save $120, 28% Off
Current USA Fission Recirculating Skimmers
Starts at $145.00
Save 50%
JBJ Automatic Top Off (A.T.O.) System Water Level Controller
Reg. Price $99.99
Sale Price $75.00
Save $25, 25% Off
E.S.V. B-Ionic 2-Part Calcium Buffer 64oz
Reg. Price $13.99
Sale Price $10.00
Save $4, 29% Off
CaribSea Purple Up Coralline Algae Accelerator 16oz
Reg. Price $14.99
Sale Price $9.99
Save $5, 33% Off
Blue Life Precision Kalkwasser 100g
Reg. Price $8.99
Sale Price 2 for $10
Save $4, 44% Off
Hydor FLO Rotating Water Deflector
Reg. Price $12.99
Sale Price $10.00
Save $3, 23% Off
Blue Life Precision Kalkwasser 100g
Reg. Price $7.99
Sale Price 2 for $10
Save $3, 20% Off
JBJ Aquascraper 4-in-1 Cleaning Kit
Sale Price $10.00
Save up to 50% Off
Hydor FLO Rotating Water Deflector
Reg. Price $7.99
Sale Price 2 for $10
Save $2, 20% Off
 
Lighting Specials
Reg. $285.99 Sale $192.99
Reg. $448.99 Sale $299.99
Reg. $523.99 Sale $349.99
Reg. $596.99 Sale $399.99
Reg. $229.99 Sale $147.99
Items Under $10
Product Review
Marine Depot Forums
ID Please?
-DJGEXETER, 11/1
Adding more LR
-ericmcj31, 11/4
My Pico Tank...
-@ntony !eonardo, 10/29
Marine Depot Species Database Clearance New Items Marine Depot Gift Certificate

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Testimonials
Aug 5, 2014
"Marine Depot is my come-to choice whenever it comes to buying aquarium supplies."
reeftanklover2012

Aug 3, 2014
"Great company, easy and quick to find and order almost anything I need. Great customer service."
Jack

July 31, 2014
"As always, it was a pleasure to do business with Marine Depot. I've ordered from them a few times before and have always been very happy with their products and service."
Ann

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