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
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
 
Search Results for Saltwater Aquarium Supplies
Show: per page
Grid View Grid List View List
Sort by:
26 - 50 of 1280
Wave Point Reef Wave Super Violet O3 Actinic 420 T5HO Fluorescent Bulbs

Wave Point Reef Wave Super Violet O3 Actinic 420 T5HO Fluorescent Bulbs

Feature(s): Higher Lumen per Watt Ratio Optimum Color Rendition Low Operating Temperature Length (including pins): 22 1/8" Bulb Replacement Guide Bulb Types Life of Bulb* ...

From $15.99
Two Little Fishies pH-Balance Marine Aquarium Buffer

Two Little Fishies pH-Balance Marine Aquarium Buffer

Two Little Fishies - pH-Balance Marine Aquarium Buffer The pH of seawater in the open ocean is stable, normally between 8.0 and 8.3due to the carbonate-bicarbonate buffering system. In tide pools and aquariums the pH can vary m...

From $7.49
Seachem Laboratories Vitality

Seachem Laboratories Vitality

Vitality™ is a comprehensive vitamin, amino acid, and trace element supplement developed to address nutritional requirements commonly associated with long term closed system housing of marine ornamental fish. Vitality™ contains as...

From $10.99
Seachem Laboratories Reef Calcium

Seachem Laboratories Reef Calcium

Seachem Reef Calcium ™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH (formulated at pH 8.2). Polygluconate complexation confers s...

From $9.49
Lifegard Aquatics Protective Sleeve for QL UV

Lifegard Aquatics Protective Sleeve for QL UV

Protective Sleeve for Lifegard Aquatics QL-10 Inline Ultraviolet Sterilizer Module, R177333

From $13.49
Kent Marine Turbo Strontium

Kent Marine Turbo Strontium

Description: TURBO STRONTIUM provides bio-available strontium for lush growth of purple, pink and green calcareous algaes, snails, hard tube worms and clams. Corals will open more and stay attached to their skeletons better, wit...

From $16.49
Eheim Replacement Ceramic Bearing Impeller w/ Shaft

Eheim Replacement Ceramic Bearing Impeller w/ Shaft

Replacement Ceramic bearing impeller (with shaft) for Hobby Pump 1046

From $30.99
AquaMaxx 200 Micron Filter Sock

AquaMaxx 200 Micron Filter Sock

4" Ring Diameter; 10-11" approx. length. Filter socks are the most convenient form of mechanical filtration. They remove excess food, detritus, organic waste, dust, and other particulates. Removing these particulates from the w...

From $8.49
Prodibio IODI+

Prodibio IODI+

IODINE is a very important trace element. It is rapidly eliminated by invertebrates, protein skimmer, active carbon, algae or is dispersed into the atmosphere. IODI + gives your aquarium the iodine it needs for the development an...

From $32.49
Seachem Laboratories Renew

Seachem Laboratories Renew

SeaChem Renew is ideal for use in systems where phosphate released from all activated carbons poses a problem. Renew is also less aggressive than carbon, making it well suited for reefs and planted aquaria. It is also beneficial f...

From $9.99
Seachem Laboratories Reef Advantage Strontium

Seachem Laboratories Reef Advantage Strontium

Seachem Reef Advantage Strontium ™ restores and maintains strontium to levels found in natural sea water. Strontium is utilized by corals in the same manner as calcium and holds a similar importance in maintaining a vigorous level...

From $8.49
Aqua Medic Reducing Tee

Aqua Medic Reducing Tee

Aqua Medic Reducing Tee Fitting - 12mm Reducing Tee Fittings are used for the connection of by pass filters like the Nitratreductor and the Calcium Reactor. Airline-sized tubing can be attached to the tee to feed water to your ca...

From $9.99
Aquarium Pharmaceuticals® API Bottom Feeder Shrimp Pellets

Aquarium Pharmaceuticals® API Bottom Feeder Shrimp Pellets

Sinking shrimp pellet formulated with seaweed to improve physiological conditions for better nutrient conversion, mussel for high palatability and additional protein sources and natural color enhancers.

From $5.99
Aquarium Pharmaceuticals Ammo-Carb

Aquarium Pharmaceuticals Ammo-Carb

A special blend of highly activated carbon - an economical filter carbon for the tropical fish hobbyist. Removes colors, odors & poisonous waste from fresh and saltwater aquariums. Can be used in all filter cartridges. Usage:...

From $7.49
Poly Filter

Poly Filter

The POLY-FILTER is for filtering and purifying both fresh and salt water aquariums. It is a formulation of a special patented material bonded to a synthetic matrix. By means of a unique proprietary process, the POLY-FILTER is made...

From $7.49
Salifert Coral Calcium

Salifert Coral Calcium

Why is calcium required? Calcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals. Calcium also fulfils many biological functions. These processes resu...

From $20.99
Innovative Marine 200 Micron Filter Sock

Innovative Marine 200 Micron Filter Sock

Instantly improve your water quality with our pre-rinsed 200 micron filter socks. These highly durable mechanical filters help trap uneaten food, free floating particulate matter, micro-bubbles, and even dust from your aquarium. ...

From $6.99
Berlin Sump Filter Sock 100 Micron

Berlin Sump Filter Sock 100 Micron

Filter sock for Berlin filtration system. Can be used with the BS-1 sump, BS-2 sump or the Berlin Hang-On Acrylic mounts. 100 micron (smaller pore size, filters out more fine particulates). Inner Diameter: 3-9/16" Outer Diameter:...

From $8.49
Double Slip Bulkhead Fitting

Double Slip Bulkhead Fitting

Part#: 270576 Size: 1/2" Hole Size: 1 1/8" This bulkhead is slip both the front and back. A PVC pipe (or other slip PVC fittings) can be glued into either end of the bulkhead. **Variations of this product can be fou...

From $4.99
Boyd Chemi Pure Elite

Boyd Chemi Pure Elite

Chemi-pure can be used with all water types as a chemical absorption filter and ion generator and exchange unit to positively keep pH at a perfect constant level. Also fantastic for use with African Cichlids and Discus! Needs repl...

From $9.99
Continuum Aquatics Reef-Basis Magnesium Liquid Supplement

Continuum Aquatics Reef-Basis Magnesium Liquid Supplement

Reef•Basis Magnesium Description: Magnesium Supplement for Marine Aquariums Features: • Provides bioavailable magnesium for corals and other invertebrates • Contains no acetates, gluconates, or polygluconates ...

From $7.49
Salifert Coral Grower

Salifert Coral Grower

About Coral Grower It contains calcium, strontium and trace elements (except iodine) required for growth and multiplication by corals and the beautiful encrusting pink and red coralline algae. We explain the necessity of these ...

From $31.56
Seachem Laboratories Purigen

Seachem Laboratories Purigen

SeaChem Purigen is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impu...

From $8.49
ATI Blue Plus T5HO Fluorescent Bulbs

ATI Blue Plus T5HO Fluorescent Bulbs

Combines the properties of a blue bulb (approximately 460nm) with an actinic bulb (approximately 420nm) producing an intense blue light with high PAR numbers and a light spectrum that encourages both bluing in SPS corals and fluor...

From $19.99
Double Threaded Bulkhead Fitting

Double Threaded Bulkhead Fitting

Part#: 270900 Size: 1/2" Hole Size: 1 1/8" This bulkhead is threaded both the front and back. A MPT threaded fitting can be screwed in to either end of the bulkhead. **Variations of this product can be found in many onlin...

From $4.99
26 - 50 of 1280
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:
Win a $100 Gift Card Sign up to get our best deals, expert tips and a chance to win $100 to spend at Marine Depot!