Great Aquariums Start Here
1-800-566-3474
    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:
451 - 475 of 479
1 Channel Apex to Stream/1 Channel Light Dimming Cable Neptune Systems AquaController

1 Channel Apex to Stream/1 Channel Light Dimming Cable Neptune Systems AquaController

Combination stream and light dimming cable for Apex variable speed ports.  It has 1 RJ45 connector on one end of the cable which plugs into the Apex base unit.  The other end of the cable contains 1 Din5 connector used t...

$18.99
Buy One Cobalt Aquatics Mini-Therm Aquarium Heater and Get One Brine Shrimp Flake Food - 3 oz FREE

Buy One Cobalt Aquatics Mini-Therm Aquarium Heater and Get One Brine Shrimp Flake Food - 3 oz FREE

Cobalt Aquatics Mini -Therm Aquarium Heater 20 watt The all new Cobalt Aquatics MINI-Therm compact and fully submersible heaters feature a constant ON design, specifically for small aquariums up to 4.8 gallons (18L). The h...

From $16.49
Salifert Boron

Salifert Boron

Why is boron required? Boron is present in NSW (Natural Sea Water) in a moderately low concentration (4.4 - 4.8 mg/L or ppm). It is present predominantly as boric acid and to a lesser extent as borate. It has several important...

From $14.99
LaMotte Calcium Test Kit Reagent Refill

LaMotte Calcium Test Kit Reagent Refill

LaMotte Calcium Test Kit Reagent Refill Direct reading Titrator for Calcium Hardness. Range is from 0-200 ppm for freshwater and 0-2580 ppm for saltwater. Color change is from red to blue. Approximately 50 tests. These kits ar...

$20.99
Coral Viewer

Coral Viewer

6" Coral Viewer / Top Down Box Surface agitation in most reef aquariums will cause the view from above the aquarium to be distorted. Using the Coral Viewer allows you to view the inhabitants of your aquarium without distortion....

From $17.99
Ocean Nutrition Clams on the Half Shell

Ocean Nutrition Clams on the Half Shell

As nature made them, whole clams still in the shell. Product Features All natural, frozen (raw) baby clams for marine carnivores. Allows finicky eaters to feed naturally from the shell. Excellent for fish that need to gri...

From $9.49
Caribsea ReefCal Ionic Calcium Solution 16oz

Caribsea ReefCal Ionic Calcium Solution 16oz

Caribsea ReefCal ReefCal is a 100,000 ppm ionic calcium solution. ReefCal will raise calcium levels by just over 5 ppm per capful (5 ml) per 25 gallons of water. Use a good quality test kit to moniter dissolved calcium levels i...

$15.49
JBJ Reaction Canister Filter: Replacement UV Lamp for EFU-15, 20, 25, 35, 45

JBJ Reaction Canister Filter: Replacement UV Lamp for EFU-15, 20, 25, 35, 45

Replacement UV light for the JBJ Reaction Canister for models EFU-15, 20, 25, 35 and 45.

$24.99
Eheim Replacement Pump Housing for Compact+ 3000 Aquarium Pump

Eheim Replacement Pump Housing for Compact+ 3000 Aquarium Pump

Replacement pump housing complete with sealing ring and 4 screws for Eheim Compact+ 3000

$15.67
AquaMaxx Replacement Cup for HOB-1 Hang-On-Back Protein Skimmer

AquaMaxx Replacement Cup for HOB-1 Hang-On-Back Protein Skimmer

Replacement Cup for AquaMaxx HOB Skimmer

$21.99
Eheim Replacement Pump Housing for Compact+ 5000 Aquarium Pump

Eheim Replacement Pump Housing for Compact+ 5000 Aquarium Pump

Replacement pump housing complete with sealing ring and 4 screws for Eheim Compact+ 5000

$15.67
Eheim Replacement Impeller for Compact+ 2000 (60 Hz) Aquarium Pump

Eheim Replacement Impeller for Compact+ 2000 (60 Hz) Aquarium Pump

Replacement Impeller for Eheim Compact+ 2000 (60 Hz)

$21.99
Eheim Carbon Filter Pad for 2222/2224 Canister Filter

Eheim Carbon Filter Pad for 2222/2224 Canister Filter

Carbon Filter Pad for Eheim Professionel External Filter 2222/2224

$18.99
Metal Bracket for 3-Stage RO Unit

Metal Bracket for 3-Stage RO Unit

Plastic Bracket for RO Filters—will hold two filter housings and one TFC membrane housing. **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although...

$17.49
Replacement Impeller for AquaMaxx Nano Calcium Reactor and ZR-1 ZEO Reactor

Replacement Impeller for AquaMaxx Nano Calcium Reactor and ZR-1 ZEO Reactor

Replacement Impeller for AquaMaxx Nano Calcium Reactor and ZR-1 ZEO Reactor

$23.99
Red Sea Phosphate Pro Test Kit - Reagent Refill Kit

Red Sea Phosphate Pro Test Kit - Reagent Refill Kit

Red Sea’s Phosphate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of phosphate in your reef aquarium to an exceptionally high accuracy of 0.02ppm PO4. Reagent Refill Kit Only - Includes reagen...

$23.46 $18.99
AquaMaxx Small Red Devil Needle Wheel for Sicce PSK-1500 Skimmer Pump

AquaMaxx Small Red Devil Needle Wheel for Sicce PSK-1500 Skimmer Pump

AquaMaxx Small Red Devil Needle Wheel for Sicce PSK-1500 Skimmer Pump

$19.99
Red Sea Iodine Pro Test Kit - Reagent Refill Kit

Red Sea Iodine Pro Test Kit - Reagent Refill Kit

Red Sea’s Iodine Pro Test Kit is a unique test, measuring the level of total iodine in your reef aquarium to a high accuracy of 0.01 ppm. Reagent Refill Kit Only - Includes reagents only to perform 50 aquarium water tests with ...

$18.99
Aqua Medic Aquarium Tweezers

Aqua Medic Aquarium Tweezers

The tweezers are a useful tool for the removal of hairy Algae. To prevent that the algae that have been plucked off from swim around in the aquarium, the tweezers are supplied with a hose connection for a 0.47" (12mm) hose. T...

$24.99
Eheim Cartridge w/ Activated Carbon for 2008

Eheim Cartridge w/ Activated Carbon for 2008

Cartridge with Activated Carbon for Eheim Internal Filter 2008. Open-cell foam cartridge, fully impregnated with special activated carbon, pH-neutral. Absorbs dissolved harmful substances, colourants, as well as residues of medici...

$24.49
Nu-Clear Canister Filter Replacement Lid

Nu-Clear Canister Filter Replacement Lid

Nu-Clear Canister Filter Replacement Filter Lid for all Nu-Clear Canister Filters

$18.99
Python 36 inch Gravel Tube

Python 36 inch Gravel Tube

Extended Length Gravel Tubes: For tall aquariums or convenient garden pond maintenance All gravel tubes are packaged with 2.5 ft. of tubing and a female connector

$15.99
AquaMaxx Replacement 10mm Tubing for Protein Skimmers

AquaMaxx Replacement 10mm Tubing for Protein Skimmers

Replacement tubing for AquaMaxx Protein Skimmers Used as replacement collection cup drain tubing for AquaMaxx HOB-1 or CO-1 Skimmer. Or, as replacement venturi tubing for Cone 2-6, ConeS CO-2/CO-3 or EM300-600 protein skimmers...

$19.99
Mur-Lok® 1/4 Inch EZ Faucet Adapter Kit

Mur-Lok® 1/4 Inch EZ Faucet Adapter Kit

Color: Grey Mur-lok Part# : H0930425 Tube O.D.: 1/4" Female Thread : 1/2" NPSM Male Thread: 1/2" NPSM The EZ Faucet Adapter Kit provides a simple connection for installing any water system, from ultra pure to under the sink...

$17.49
Ocean Currents C-Stand

Ocean Currents C-Stand

Durable C-shaped plastic stand supports any Ocean Currents Wave Maker at 3-1/2" height from the base. 2-1/2" wide x 3" tall round-nosed tab also supports most small (1/2" outlet) powerheads.

$19.99
451 - 475 of 479
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.