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:
Marine Depot Fired Ceramic Square Frag Plugs - 25 Pack

Marine Depot Fired Ceramic Square Frag Plugs - 25 Pack

This is a fired ceramic disk that does not need to be soaked before using. Plugs fit into eggcrate and are excellent for frag grow out. Measurements: 1" Square with 1/2" stem length

$9.99
Fish Trap

Fish Trap

Features Removable feeding tube, where you can place food inside. Strong suction cups to hold the trap in place. First remove the thin plastic cover on the suction cups, loosen the suction cup`s screw, press the suction cups...

From $31.49
Auto Top Off System w/ Pump and  Magnetic Sensors

Auto Top Off System w/ Pump and Magnetic Sensors

Easy-to-use auto top off system that is ready to go out of the box! Includes one float sensor with magnetic mounting bracket and top-off pump. The float sensor is enclosed in a protective acrylic enclosure to prevent snails or...

From $79.99
Marine Depot Fired Ceramic Frag Station

Marine Depot Fired Ceramic Frag Station

This is a fired ceramic disk that does not need to be soaked before using. They are excellent for zoanthid growout and color up nicely in your tank.

From $13.99
Marine Depot Small Fired Ceramic Circular Frag Plugs

Marine Depot Small Fired Ceramic Circular Frag Plugs

This is a fired ceramic disk that does not need to be soaked before using. Plugs fit into eggcrate and are excellent for frag grow out. Measurements: 3/4" Round with 1/2" stem length

From $6.49
Marine Depot Ceramic Coral Frag Plug with Rock Base - 2 Pack

Marine Depot Ceramic Coral Frag Plug with Rock Base - 2 Pack

Size 3x3" ideal for sandbed soft coral growout disks can be easily removed and replaced for swapping.

$9.99
Marine Depot Aquarium Refractometer

Marine Depot Aquarium Refractometer

The Refractometer is a must have for all aquarium hobbyists. The proper salinity is crucial for the survival and health of your fish and corals . This high quality refractometer is extremely accurate and easy to use and calibr...

$49.99
Marine Depot Aquarium Pro Refractometer

Marine Depot Aquarium Pro Refractometer

Designed specifically for aquarium use to measure the salinity of natural sea water (NSW). Most handheld saltwater refractometers available in the hobby are designed and calibrated for testing brine solution, i.e. sodium chlorid...

$64.99
Marine Depot Large Fired Ceramic Circular Frag Plugs

Marine Depot Large Fired Ceramic Circular Frag Plugs

This is a fired ceramic disk that does not need to be soaked before using. They are perfect for zoanthid growout and the pin keeps the disk in place on eggcrate or your sand bed. Measurements: 1/1/4" Round with 1/2" stem length

From $3.49
Marine Depot Fired Ceramic Premium Frag Plugs - 13 Pack

Marine Depot Fired Ceramic Premium Frag Plugs - 13 Pack

This is a premium fired ceramic dish with mounting hole that does not need to be soaked before using. They are perfect for zoanthid growout and the pin keeps the disk in place on eggcrate or your sand bed.

$15.99
Marine Depot Media Reactor for GFO and Carbon w/ Cobalt Aquatics MJ1200 Pump

Marine Depot Media Reactor for GFO and Carbon w/ Cobalt Aquatics MJ1200 Pump

Marine Depot Single Media Reactor for GFO or Carbon Finally, an easy-to-use media reactor that is both economical and durable! Great for use with GFO (granular ferrous oxide), activated carbon, biological media or most typ...

From $124.99
Marine Depot GFO and Carbon Filter Media Reactor

Marine Depot GFO and Carbon Filter Media Reactor

Marine Depot Single Media Reactor for GFO or Carbon Finally, an easy-to-use media reactor that is both economical and durable! Great for use with GFO (granular ferrous oxide), activated carbon, biological media or most typ...

From $80.99
Marine Depot Logo Polo Shirt (Small)

Marine Depot Logo Polo Shirt (Small)

100% cotton pique, high quality, white polo shirt with navy blue trim on the collar and cuffs and the Marine Depot logo embroidered on the left chest.

$29.99
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
Marine Depot Large Fired Ceramic Frag Disks

Marine Depot Large Fired Ceramic Frag Disks

This is a fired ceramic disk that does not need to be soaked before using. No post means they are easy to re-position on egg crate or your frag rack. The larger size is great for grow-out of your favorite corals. Measurement: ...

From $9.99
Marine Depot Fired Ceramic Micro Plugs

Marine Depot Fired Ceramic Micro Plugs

This is a fired ceramic plug that does not need to be soaked before using. Plugs fit into eggcrate and most frag racks and are excellent for frag grow out. Great for zoanthids, palythoas and smaller SPS frags!

From $5.49
Marine Depot Fired Ceramic Frag Platforms - 2 Pack

Marine Depot Fired Ceramic Frag Platforms - 2 Pack

Size 3" x 3". Ideal for sandbed soft coral grow out such as zoanthids or palythoas. Grow out disks can be easily removed and replaced for swapping. Fire ceramic material does not require soaking/rinsing before use.

$9.99
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!