We offer a wide variety of Metal Halide bulb choices to suit your aquarium lighting needs. A Metal Halide Lamp is a high-intensity discharge light source in which the light is produced by the radiation from mercury, plus halides ...

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aqualine 10000 | aqualine | metal halide | 150 ballast

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$99.99 to $109.99

Danner Mag-Drive Supreme Water Pump

Flow Rate: 65 GPH maximum with a 26" shut-off Power Consumption: 5 Watts Pump Size (L x W x H): 2.5" x 1.8" x 2.8" Outlet Size / Inlet Size: No Thread Built-in adjustable flow control 6` grounded power cor...

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$19.99 to $154.99

Mag-Float Magnet Cleaner (Glass)

Model: Float-30 Up to: 30gal (114L) Glass / Thickness: 3/16" (5mm) Dimensions: 2 3/8" x 1 3/8" x 1" The Mag-Float’s Powerful rare earth neodymium magnets enable the easy removal of algae. By dragging the Mag-Float on the outside ...

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mag float | magnet | magnet glass cleaner | magnet cleaner

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Algae Free Algae Magnets

New and Revolutionary Cleaning Magnets! These are the strongest floating aquarium algae cleaning magnets available that are safe for glass and acrylic aquariums. The inner cleaning assembly is made of high quality injected m...

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magnet | algae free | algae magnet | piranha

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JBJ Automatic Top Off (A.T.O.) System Water Level Controller

A.T.O.—Automatic Top Off System Water Level controller Tired of lifting heavy buckets to refill sumps or tanks due to evaporation? There is finally a professional grade product that automates refilling evaporated water. The Al...

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Item Code: JB5111

Digital Aquatics ReefKeeper Lite Controller

ReefKeeper Lite Level 1 ReefKeeper Lite Preliminary Product Information Expandable - up to 4 modules (PC4s, SL1s or MLC) pH, ORP, and switch inputs (w/ optional SL1) 16 timers / 16 alarms Audible / Visual alarms ...

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reefkeeper | reefkeeper lite | reef keeper lite | lite

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ASM Protein Skimmer Replacement Pumps

Replacement pump for Mini-G G-300 Pump size (with venturi): 4.75" x 2.5" x 4"

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JBJ In-Tank Submariner UV Sterilizer/Clarifier

JBJ Lighting Submariner In Tank UV Sterilizer 5W UV Sterilizer: JBJ Lighting Submariner, In Tank UV Sterilizer 5W UV Sterilizer is the proactive solution for eradicating harmful micro-organisms and unattractive green free-floa...

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uv sterilizer | submariner | uv | clarifier

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Hydor Koralia Magnum Circulation Pump/Powerhead

1650GPH/ 8W Power Consumption The new Koralia models 5-6-7-8 guarantee unbelievable performance for probably the lowest power consumption of any pump on the market. Equipped with an electronic start up system, new technology roto...

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magnum | koralia | koralia controllable | koralia magnum

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Current USA Nova Extreme 2 Bulb T5 HO 10K/460nm Marine

Experience a whole new level of brightness European style high output T5 lamps Performance driven electronic ballast Slim design & German parabolic reflector Energy efficient Simplicity by design The Nova E...

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CO2 Regulators

Deluxe Dual gauged CO2 regulator assembly includes solenoid and fine adjust needle control. CO2 Deluxe Regulator System: Perfect for calcium reactor and Freshwater Plant CO2 injection applications - It can provi...

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regulator | solenoid | co2 | m3 regulator

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Eheim SUBSTRAT Pro Biological Filtration Media

SUBSTRAT PRO 0.25L: Eheim`s new superior biological media that improves and optimizes the performance of Ehfisubstrat. It is for highly active water purification with intensive biological decomposition of harmful substances. For u...

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substrat pro | pro | substrat | filter

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CO2 Cylinder

5-pound brushed aluminum cylinder. Made in the US. Brand new and empty. Equipped with Sherwood Cylinder Valve w/ black hand wheel. CO2 regulators and CO2 cylinders have CGA 320 fittings for USA & Canada. A CGA-320 fitting...

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cylinder | tank | cylinders | 5 lb

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American Marine Pinpoint pH Monitor Package

American Marine PINPOINT pH Monitor The PINPOINT pH Monitor™ is in use by thousands of customers worldwide. This affordable unit remains the only full-time pH monitor with .01 resolution. The PINPOINT pH Monitor™ requires only a ...

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ph monitor | pinpoint | ph | pinpoint ph

Our Price: $104.99

Item Code: AMPHMK

Aqua Clear Hang-On-Back Power Filter, UL Listed

Quiet Low operating costs Complete filtration Large filter media volume Superior contact time with filter media Cycle Guard, for continuous biological filtration and superior water quality Includes foam, carb...

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filter | aqua clear | aquaclear 110 | aquaclear 70

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Testimonials

March 06, 2010
"Marine Depot is AWESOME. I purchased my item and it was at my home in two days using normal UPS shipping!!! Thank you for your great customer service."
Michael

March 05, 2010
"Delivery time is unsurpassed. If you need it fast, there is no place faster than Marine Depot for standard shipping. They also have almost anything I could need for a reef tank."
Grey Seaslug

March 01, 2010
"They have so many great products and it’s a very easy website to navigate! From all-in-one to do-it-yourself, there is something for everyone! Awesome summaries at the top of every major heading! This company does a great job and the website is great!"
David Peron

AquaMaxx Metal Halide Bulbs - I was blown away by the color