Great Aquariums Start Here
1-800-566-3474
Live Chat Support
    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
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
Same Day Shipping
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
Search Results for Saltwater Aquarium Supplies
Show: per page
Grid View Grid List View List
Sort by:
76 - 100 of 387
Seachem Laboratories Marine Buffer

Seachem Laboratories Marine Buffer

Seachem Marine Buffer is the original and still unique buffer with a pH of 8.3, designed to adjust pH to 8.3 and maintain both pH and alkalinity(KH). It is formulated not to disrupt the natural ionic balance of marine water with p...

From $6.49
Hydor Centrifugal Universal Pump

Hydor Centrifugal Universal Pump

All purpose high performance pump for fresh water and marine aquariums. Flow control system, one-piece rotor assembly, filter sponge. Suitable for biological, wet-and-dry filters and for water circulation. Features: For subme...

From $29.99
Hydor Koralia Smart Wave Pump Controller

Hydor Koralia Smart Wave Pump Controller

Smartwave is the new controller for movement and circulation pumps designed by Hydor. In nature, river and sea currents are a vital part of the natural life cycle of aquatic creatures as they promote oxygenation, transport nutrien...

$69.99
Coralife Replacement Lamp - Pl Type For Turbo Twist

Coralife Replacement Lamp - Pl Type For Turbo Twist

Replacement Lamp for UV Sterilizers Dimensions: 6.75in x 1.5in x 1in

From $30.99
Eheim Twin Battery Powered Automatic Fish Feeder

Eheim Twin Battery Powered Automatic Fish Feeder

The Eheim Twin Fish Feeder has two 80 ml feeding containers for all kinds of food--granules, sticks, pellets, and flakes Two types of food can be given at the same time, providing the best possible feeding for all types of fish a...

$69.99
CaribSea South Seas Aquascaping Base Rock

CaribSea South Seas Aquascaping Base Rock

Top quality Phillipine base rock, clean and nicely sized from baseball to softball size South Seas Lace Rock is a great new aquascaping rock that we are excited to be offering. South Seas had much more structure than any othe...

From $25.49
Tropic Marin Bio Actif Sea Salt - 200 Gallon Mix Bucket

Tropic Marin Bio Actif Sea Salt - 200 Gallon Mix Bucket

Makes 200 Gallons of Saltwater The revolutionary new synthetic sea salt which combines maximum purity in terms of its components with the protective and growth-promoting action of bioactive substances naturally found in the s...

$98.99
AquaIllumination Rail Kit for Sol / Vega LED Fixtures

AquaIllumination Rail Kit for Sol / Vega LED Fixtures

Mounting your Sols on your tank is easy with the Sol/Vega Mounting Rails. The rails rest on your tank or combined with the Sol/Vega Hanging Kit (sold separately) make it easy to suspend your lights. AquaIllumination`s versatile S...

From $29.99
AquaMaxx Phosphate Out Pro High Capacity GFO Filter Media

AquaMaxx Phosphate Out Pro High Capacity GFO Filter Media

AquaMaxx Phosphate Out Pro is a high capacity granular ferric oxide adsorptive filter media that removes phosphate from aquarium water. Phosphate is a fuel for algae growth and can also inhibit a coral`s ability to utilize calcium...

From $43.99
14000K Metal Halide Bulb - Hamilton, Mogul Base

14000K Metal Halide Bulb - Hamilton, Mogul Base

175W 14000K METAL HALIDE SINGLE ENDED BULB—HAMILTON The Hamilton single-ended 14000K metal halide bulb offers excellent coloration and good intensity. It is crisp-white with a blue tint. It brings out the fluo...

From $57.99
PURA PhosLock GFO Phosphate Removal Media

PURA PhosLock GFO Phosphate Removal Media

Groundbreaking filtration media at the right price. For Reef, Marine, Planted, and Fresh Water aquaria! The PURA family of filtration media is formulated to reduce scum formation in fresh and marine aquaria. All PURA products ...

From $11.99
NP Biopellets All In One Biopellets

NP Biopellets All In One Biopellets

Previously, Reef Interests was the first to develop and present the NP reducing BioPellets which are mostly removing Nitrogen waste products and along with a smaller amount of Phosphates. DVH has been hard at work developing a ne...

From $22.99
Ecoxotic 48 Inch Stunner 24W LED Strip

Ecoxotic 48 Inch Stunner 24W LED Strip

Stunner LED Strips It’s never been faster or easier to add light, accent and shimmer to your tank – without all that other stuff like heat and noisy fans. Put beautiful, shimmering light right where you want it with a simple, ...

From $63.49
AquaIllumination EXT Tank Mount for Sol / Vega LED Fixtures

AquaIllumination EXT Tank Mount for Sol / Vega LED Fixtures

Features The EXT Rail System continues AI`s industry-leading core of modularity and elegant design. Mount single or multiple AI modules over your tank, the EXT provides a sleek and complete mounting solution. With the option t...

From $64.99
Lifegard Aquatics Quiet One Pro Series Aquarium Pump

Lifegard Aquatics Quiet One Pro Series Aquarium Pump

LIFEGARD® QUIET ONE® PRO SERIES PUMPS ECO-SAV™ runs cooler and generates more power with less energy consumption. Internal recirculation prevents overheating and ejects obstructing debris. Remarkable impeller technology pr...

From $32.99
Book Of Coral Propagation Vol. 1 Edition 2 by Anthony Calfo - Hard Cover

Book Of Coral Propagation Vol. 1 Edition 2 by Anthony Calfo - Hard Cover

Now in its sixth printing, the second edition of this pioneer publication is full-format (8.5" X 11") and fully illustrated (~1000 images) and available now in a blaze of color with dramatic images! The Book of Coral Propagation i...

$54.99
CaribSea Florida Crushed Coral, Geo-Marine Formula

CaribSea Florida Crushed Coral, Geo-Marine Formula

Geo-Marine: Florida Crushed Coral It’s the only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals, dolomite or oyster shell. Eliminate chronic pH problems and provide maximum s...

From $21.99
SCWD Wavemaker - Switching Current Water Director (Squid)

SCWD Wavemaker - Switching Current Water Director (Squid)

The SCWD (pronounced "squid") is a revolutionary device designed to provide alternating currents without the use of electricty. The SCWD mounts inline with 3/4" tubing, the two ports alternate the output, the bottom port is the in...

From $39.99
Two Little Fishies ReBorn Coarse Aragonite Calcium Reactor Media

Two Little Fishies ReBorn Coarse Aragonite Calcium Reactor Media

Reborn™ coarse aragonite media for calcium reactors, composed of fossil skeletons of reef building corals sustainably harvested from pristine sites in the Western Pacific. When dissolved, ReBorn replenishes calcium and carbonate a...

From $22.99
CaribSea Aragamax Sugar-Sized Sand 30 lb

CaribSea Aragamax Sugar-Sized Sand 30 lb

Aragamax Sugar-Sized Sand: 0.2 - 1.2mm diameter grain size. Also known as "oolitic sand," this grade is ideal for shallower bedsallowing dentrification in little 1"depth. The fine can pass easily through gills of gobys and other s...

$51.99
Tunze Recirculation Pump/Powerhead Silence

Tunze Recirculation Pump/Powerhead Silence

Tunze Recirculation Pump Silence The TUNZE® Silence recirculation pumps combine the advantages of modern and powerful universal pumps for saltwater and fresh-water aquariums. Very silent operation, rotor with high-performance ...

From $36.99
SpectraPure® MaxCap Super DI and SilicaBuster Super DI Cartridge Kit

SpectraPure® MaxCap Super DI and SilicaBuster Super DI Cartridge Kit

SpectraPure® MaxCap Super DI Cartridge SpectraPure, Inc.® Revolutionary MaxCap® Super DI™ cartridge has over 4 times more removal efficiency than any other Mixed-Bed or Hi-Silica de-ionizing cartridge. When placed upstream of y...

$68.99
Brightwell Aquatics Phosphat-E Liquid Phosphate Remover for all Marine Aquaria

Brightwell Aquatics Phosphat-E Liquid Phosphate Remover for all Marine Aquaria

Overview: Begins to eliminate reactive phosphate immediately upon addition to aquarium. Safe for all inhabitants of reef and marine fish-only aquaria. Each ml eliminates 1 ppm phosphate in 4 US-gallons of water (250 ml tre...

From $28.49
Hydor Koralia Pump/Powerhead

Hydor Koralia Pump/Powerhead

1650GPH/ 8W Power Consumption The new Hydor Koralia models 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...

From $89.99
20000K+ Metal Halide Bulb - Ushio, Double Ended

20000K+ Metal Halide Bulb - Ushio, Double Ended

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 ...

From $49.99
76 - 100 of 387
This item is temporarily unavailable but will be back in stock soon.

Item #
Price:
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.

Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

Your Email:
Just enter your email address below and we'll let you
know when the product you are looking for becomes available!

Item Code:
Price:
Your Email:
Marine Depot Newsletter Signup
Aquariums, News & Culture
Join 100,000+ readers who receive weekly tips, videos, deals and giveaways.