null

Free Shipping

On All Orders over $39

Free Returns

365 Day Return Period

Military Discount

5% Military & Civil Service

Rewards

Up to 5% Cash Back Rewards

Featured Products

  • RO/DI Flood Guardian - RODI Auto Shut Off Solinoid - AutoAqua

    RO/DI Flood Guardian - RODI Auto Shut Off Solinoid - AutoAqua

    AutoAqua
    $94.99
    Stop the Floods. Start the Convenience. Making RO or RO/DI water for your aquarium is a time-consuming necessity, but forgetting to turn it off shouldn't cost you a flooded floor. The AutoAqua Smart...
    Add to Cart
  • On Sale 15%
    B-Ionic Nitrate (16 oz) - ESV
    On Sale 15%

    B-Ionic Nitrate (16 oz) - ESV

    ESV
    $19.99
    $16.99
    Achieve vibrant coral coloration and robust health with ESV B-Ionic® Nitrate, a professional-grade, highly purified calcium nitrate solution. In the modern ultra-low nutrient system (ULNS), many reef...
    Add to Cart
  • On Sale 15%
    Granular Activated Clean Carbon (3.5 lbs, 1600 grams) - ESV
    On Sale 15%

    Granular Activated Clean Carbon (3.5 lbs, 1600 grams) - ESV

    ESV
    $39.99
    $33.99
    Achieve crystal-clear water and a healthier aquatic environment with ESV Granular Activated Carbon (GAC). Recognized by professional reef keepers as one of the highest-quality chemical filtration...
    Add to Cart
  • On Sale 15%
    Kalkwasser Powder Calcium Hydroxide (14 oz, 400 grams) - ESV
    On Sale 15%

    Kalkwasser Powder Calcium Hydroxide (14 oz, 400 grams) - ESV

    ESV
    $14.99
    $12.74
    Maintain a thriving reef ecosystem with the purity of ESV Kalkwasser. A cornerstone of marine aquarium care for decades, Calcium Hydroxide is a proven, economical method for maintaining both calcium...
    Add to Cart
  • 4-Head Dosing Pump - Simplicity

    4-Head Dosing Pump - Simplicity

    Simplicity
    $149.95
    The Simplicity Dosing Pump is an accurate, effective, and affordable liquid dosing solution. The four dosing heads offer high-precision liquid dosing combined with easy-to-use integrated controls...
    Add to Cart
  • On Sale 15%
    Marine Grazing Pellets 8mm (2.82 oz) - Vialtis
    On Sale 15%

    Marine Grazing Pellets 8mm (2.82 oz) - Vialtis

    Vitalis
    $20.99
    $17.84
    Vitalis Marine Grazing Pellets (8mm) – 80g Fuel the natural foraging instincts of your saltwater fish with Vitalis Marine Grazing Pellets. These high-quality, 8mm pellets are specifically formulated...
    Add to Cart
  • On Sale 15%
    Marine Grazing Pellet Station - Vitalis
    On Sale 15%

    Marine Grazing Pellet Station - Vitalis

    Vitalis
    $8.99
    $7.64
    Vitalis Universal Grazing Station – Interactive Feeding System Enhance your aquarium’s feeding experience with the Vitalis Universal Grazing Station. Designed by the experts at Vitalis, this...
    Add to Cart
  • BioSpace Reactor 8-2 (8" x 21") Up to 500 Gallons - Bashsea

    BioSpace Reactor 8-2 (8" x 21") Up to 500 Gallons - Bashsea

    Bashsea
    $599.00
    Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...
    Options
  • BioSpace Reactor 6-2 (6" x 21") Up to 225 Gallons - Bashsea

    BioSpace Reactor 6-2 (6" x 21") Up to 225 Gallons - Bashsea

    Bashsea
    $399.00
    Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...
    Options
  • BioSpace Reactor 4-2 (4" x 21") Up to 110 Gallons - Bashsea

    BioSpace Reactor 4-2 (4" x 21") Up to 110 Gallons - Bashsea

    Bashsea
    $219.00
    Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...
    Options
  • 4" NOSOK Filter Sock No Sock Replacement Silencer Cup - VCA

    4" NOSOK Filter Sock No Sock Replacement Silencer Cup - VCA

    VCA Vivid Creative
    $44.95
    Silence Your Sump and Simplify Your Maintenance Routine Tired of the constant splashing and "gurgling" sounds coming from your filter socks? The VCA No-Sock 4-Inch Silencer is the ultimate solution...
    Add to Cart
  • On Sale 15%
    84 Gallon Peninsula Drop Off Aquarium w/ Black Stand - Fiji Cube
    On Sale 15%

    84 Gallon Peninsula Drop Off Aquarium w/ Black Stand - Fiji Cube

    Fiji Cube
    $3,999.99
    $3,399.99
    Dive into something different with the Fiji Cube 84 Gallon Peninsula Internal Overflow Drop Off Rimless Aquarium – where creativity meets the coast! Designed for reef lovers and aquascaping...
    Add to Cart
  • ION-B ALK/pH+ Liquid (5000 mL) Base 2 Part - NYOS

    ION-B ALK/pH+ Liquid (5000 mL) Base 2 Part - NYOS

    NYOS
    $59.99
    Balanced Alkalinity Support for Modern Reef Tanks Pre-Mixed, Ready-to-use Solution Increases Alkalinity and Stabilizes pH Also Contains Sulfate, Bromine and Fluorine for Ion...
    Add to Cart
  • ION-B CA/MG+ Liquid (5000 mL) Base 2 Part - NYOS

    ION-B CA/MG+ Liquid (5000 mL) Base 2 Part - NYOS

    NYOS
    $59.99
    Balanced Calcium and Magnesium Support for Modern Reef Tanks Pre-Mixed, Ready-to-use Solution Increases Calcium and Magnesium Also Contains Strontium, Potassium, and Boron for Ion...
    Add to Cart
  • Nitrate Minus (1000 ml) - NYOS

    Nitrate Minus (1000 ml) - NYOS

    NYOS
    $34.99
    Achieve Near-Detection-Limit Water Purity Nyos® Nitrate Minus is a high-purity, innovative solution designed to biologically reduce nitrate levels in marine and fresh
    Add to Cart

View all products

What's New?

  • On Sale 10%
    (OPEN BOX) EXTREME Curve Skimmer 9EX - Bubble Magus
    On Sale 10%

    (OPEN BOX) EXTREME Curve Skimmer 9EX - Bubble Magus

    Bubble Magus - Seaside
    $359.99
    $323.99
    UNUSED CUSTOMER RETURN CURVE 9 EXTREME Measure：250*295*610 (9.84" x 11.61 x 24.02" ) Use to 900-1500L Aquarium (238-396Gal) ROCK SP4.0 Pump 220-240V, 50Hz, 25W (120V, 60Hz, 0.5A)</
    Add to Cart
  • On Sale 10%
    (OPEN BOX) Elite 220 INT Super Cone Protein Skimmer - Reef Octopus
    On Sale 10%

    (OPEN BOX) Elite 220 INT Super Cone Protein Skimmer - Reef Octopus

    Reef Octopus
    $1,108.79
    $999.99
    UNUSED CUSTOMER RETURN The new and innovative Reef Octopus Elite 220-INT in-sump protein skimmer supplies powerful filtration for aquariums up to 530 gallons. The Reef Octopus Elite...
    Add to Cart
  • On Sale 11%
    (OPEN BOX) PRO-CARBON Activated Carbon (4000 ml) - Polyplab
    On Sale 11%

    (OPEN BOX) PRO-CARBON Activated Carbon (4000 ml) - Polyplab

    PolypLab
    $44.99
    $39.99
    SQUISHED BUCKET - PRODUCT UNTOUCHEDHigh performance activated carbon for crystal clear water in fresh-water and salt-water aquariums. PolypLab Pro Carbon is is an ultra high performance activated...
    Add to Cart
  • On Sale 50%
    (EXPIRED 7/25) TDO-B2 Chroma Boost Fish Food (16 oz) - Reef Nutrition
    On Sale 50%

    (EXPIRED 7/25) TDO-B2 Chroma Boost Fish Food (16 oz) - Reef Nutrition

    Reef Nutrition
    $50.25
    $24.99
    TDO Chroma BOOST is a granulated and pelleted fish and coral feed "top-dressed" with Haematococcus (which provides an excellent source of astaxanthin) for vibrant color and superior nutrition. ...
    Add to Cart
  • On Sale 61%
    (EXPIRED 4/26) Fritzguard Water Conditioner (1 Gal) - Fritz Aquatics
    On Sale 61%

    (EXPIRED 4/26) Fritzguard Water Conditioner (1 Gal) - Fritz Aquatics

    Fritz Aquatics
    $84.99
    $32.99
    EXPIRED FritzGuard is a safe and effective pH buffered water conditioner that neutralizes toxic chlorine, chloramines and heavy metals found in tap water. FritzGuard promotes healing and reduces...
    Add to Cart
  • On Sale 48%
    (EXPIRED 6/26) AF Growth Boost Coral Food (35 g) - Aquaforest
    On Sale 48%

    (EXPIRED 6/26) AF Growth Boost Coral Food (35 g) - Aquaforest

    Aquaforest
    $15.39
    $7.99
    EXPIRED AF Growth Boost is a supplement for growth acceleration. It is designed for all kinds of corals. Due to the unique composition of carefully selected amino acids, it significantly improves...
    Add to Cart
  • On Sale 10%
    (OPEN BOX) Fluid Monitoring Module (Module Only) - Neptune Systems
    On Sale 10%

    (OPEN BOX) Fluid Monitoring Module (Module Only) - Neptune Systems

    Neptune Systems
    $139.99
    $125.99
    UNUSED CUSTOMER RETURN FMM – FLUID MONITORING MODULE IT DOES SO MUCH! This is just the module itself without and sensors. The FMM (Fluid Monitoring Module) is a module that connects to any Apex...
    Add to Cart
  • On Sale 15%
    Chaos Jawbreaker Discosoma WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Chaos Jawbreaker Discosoma WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $369.99
    $314.49
    Chaos Jawbreaker Discosoma WYSIWYG (Egg crate squares are 1.25") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Chaos Jawbreaker...
    Add to Cart
  • On Sale 15%
    Darth Maul Jawbreaker Discosoma WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Darth Maul Jawbreaker Discosoma WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $209.99
    $178.49
    Darth Maul Jawbreaker Discosoma WYSIWYG (Egg crate squares are 1.25") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Darth Maul...
    Add to Cart
  • On Sale 15%
    Mint Chip Jawbreaker Discosoma WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Mint Chip Jawbreaker Discosoma WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $199.99
    $169.99
    Mint Chip Jawbreaker Discosoma WYSIWYG (Egg crate squares are 1.25") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Mint Chip...
    Add to Cart
  • On Sale 15%
    Red Goniopora Coral Colony WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Red Goniopora Coral Colony WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $189.99
    $161.49
    Red Goniopora Coral Colony WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Red Goniopora Coral Colony...
    Add to Cart
  • On Sale 15%
    Blue Punch Goniopora Coral WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Blue Punch Goniopora Coral WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $199.99
    $169.99
    Blue Punch Goniopora Coral WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Blue Punch Goniopora...
    Add to Cart
  • On Sale 15%
    Firecracker Goniopora Coral WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Firecracker Goniopora Coral WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $249.99
    $212.49
    Firecracker Goniopora Coral WYSIWYG  (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Firecracker...
    Add to Cart
  • On Sale 15%
    Key Lime Goniopora Coral WYSIWYG - SAQ Coral Farm
    On Sale 15%

    Key Lime Goniopora Coral WYSIWYG - SAQ Coral Farm

    Saltwater Coral Farm
    $249.99
    $212.49
    Key Lime Goniopora Coral WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Key Lime Goniopora Coral...
    Add to Cart
  • Reduce DOC (8 oz) - Microbial Marine

    Reduce DOC (8 oz) - Microbial Marine

    Microbial Marine
    $24.99
    Concept: MICROBIAL MARINE REDUCE DOC/ORGANICS is a blend of specialty coconut-based, low-dust, steam-activated carbon and macroporous adsorption resin. The inclusion of macroporous adsorption resin...
    Out of stock

View all products

Best-Selling Products

  • On Sale 25%
    Marco Rocks Reef Saver Premium Rock (by the lb) - Marco Rock
    On Sale 25%

    Marco Rocks Reef Saver Premium Rock (by the lb) - Marco Rock

    MarcoRocks
    $3.49
    $2.62
    "By the Pound" means you are choosing the weight of your rock. Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks. Selling individual rocks is impossible due to the fact that every ro
    Add to Cart
  • On Sale 15%
    MarcoRocks Shelf Premium Dry Rock (by the lb) - Marco Rock
    On Sale 15%

    MarcoRocks Shelf Premium Dry Rock (by the lb) - Marco Rock

    MarcoRocks
    $6.89
    $5.86
    "By the Pound" means you are choosing the weight of your rock.  Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks. Selling individual rocks is impossible due to the fact th
    Add to Cart
  • On Sale 15%
    HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments
    On Sale 15%

    HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments

    Hanna Instruments
    $26.99
    $22.94
    HI782-25 (25 tests) The HI782-25 are the replacement reagents for the HI782 Nitrate High Range Checker.  These high quality reagents are manufactured in our state-of-the-art facility and...
    Add to Cart
  • On Sale 12%
    ReefMat 500 Replacement Fleece (92') Roll - Red Sea
    On Sale 12%

    ReefMat 500 Replacement Fleece (92') Roll - Red Sea

    Red Sea
    $20.00
    $17.60
    Efficient, high-flow, skimmer friendly non-woven polyester fleece-mat rolls. Installation Instructions for EVERY Red Sea Model - https://www.redseafish...
    Add to Cart
  • On Sale 12%
    ReefMat 1200 Replacement Fleece (115') Roll - Red Sea
    On Sale 12%

    ReefMat 1200 Replacement Fleece (115') Roll - Red Sea

    Red Sea
    $32.00
    $28.16
    Efficient, high-flow, skimmer friendly non-woven polyester fleece-mat rolls. Installation Instructions for EVERY Red Sea Model - https://www.redseafish...
    Add to Cart
  • Airline Tubing (OZONE SAFE) By the Foot - Python

    Airline Tubing (OZONE SAFE) By the Foot - Python

    Python
    $0.24
    Python airline tubing is made from a non toxic, FDA approved, and ozone safe material.  It's pale blue in color and is easy to conceal, making it virtually invisible in your aquarium. ...
    Add to Cart
  • On Sale 15%
    Emerald Crab (Mithraculus sculptus) - Cleanup Crew
    On Sale 15%

    Emerald Crab (Mithraculus sculptus) - Cleanup Crew

    Clean Up Crews
    $14.99
    $12.74
    Tired of battling persistent bubble algae and unsightly hair algae? The Emerald Crab (Mithraculus sculptus) is your diligent, all-natural solution. Hailing from the vibrant reefs of the Caribbean,...
    Add to Cart
  • On Sale 15%
    (Germany) Pro Reef Salt Bucket (200 Gallon) - Tropic Marin
    On Sale 15%

    (Germany) Pro Reef Salt Bucket (200 Gallon) - Tropic Marin

    Tropic Marin
    $132.99
    $113.04
    Tropic Marin Pro-Reef Sea Salt – 200 Gallon Bucket (Germany) At a Glance The Gold Standard for Modern Reef Keeping. Tropic Marin Pro-Reef is the premium, pharmaceutical-grade salt mix engineered...
    Add to Cart
  • 1/4" Mur-lok Polyethylene BLUE RO Tubing (Choose Your Length)

    1/4" Mur-lok Polyethylene BLUE RO Tubing (Choose Your Length)

    SaltwaterAquarium
    $2.99 - $99.99
    All Tubing is Sold by The Foot.  If you would like 10 Feet of Tubing, purchase a quantity of 10.  Need 20 foot of tubing, enter 20 for the quantity.  You can edit the quantity inside...
    Options
  • On Sale 15%
    Dragon Stone Mixed Sizes (by the lb) - Dragonstone Freshwater Rock
    On Sale 15%

    Dragon Stone Mixed Sizes (by the lb) - Dragonstone Freshwater Rock

    Lifegard
    $2.49
    $2.12
    Increase the beauty of your aquarium landscape with these unique style stones and rocks to look like miniature rock formations. Customize your reef structure with safe, all-natural materials...
    Add to Cart
  • SaltwaterAquarium.com Tank Parameter Reference Card

    SaltwaterAquarium.com Tank Parameter Reference Card

    All Misc Brands
    $0.00
    FREE WITH ANY ORDER.  JUST ADD TO YOUR CART WITH MERCHANDISE AND IT WILL BE FREE. A Business Card sized reference card for the most common aquarium parameters. 
    Add to Cart
  • Apex Trident Reagent Kit (6 Month Supply) - Neptune Systems

    Apex Trident Reagent Kit (6 Month Supply) - Neptune Systems

    Neptune Systems
    $109.99
    Trident Reagent Kit 6 Month Supply - With six month kits, the cost of running the Trident is less than $17 per month - that’s averages out to about 7 cents a test! Neptune Systems recommends keeping...
    Add to Cart
  • Tigger Pods Live Copepods (6 oz) - Reef Nutrition

    Tigger Pods Live Copepods (6 oz) - Reef Nutrition

    Reef Nutrition
    $28.00
    Because Tigger-Pods (Tigriopus californicus copepods) swim upwards with a stimulating, jerky motion, they are attractive to a wide range of fish...
    Add to Cart
  • On Sale 12%
    Large Bucket Coral Pro Sea Salt Mix (Makes 175 Gallons) - Red Sea
    On Sale 12%

    Large Bucket Coral Pro Sea Salt Mix (Makes 175 Gallons) - Red Sea

    Red Sea
    $97.99
    $86.23
    Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro...
    Add to Cart
  • On Sale 20%
    Real Reef Rock Large 8-16" (by the pound) - Real Reef
    On Sale 20%

    Real Reef Rock Large 8-16" (by the pound) - Real Reef

    Real Reef
    $6.99
    $5.59
    "By the Pound" means you are choosing the weight of your rock.  Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks. Selling individual rocks is impossible due to the fact th
    Add to Cart
  • On Sale 20%
    Real Reef Rock (by the pound) - Mixed Sizes - Real Reef
    On Sale 20%

    Real Reef Rock (by the pound) - Mixed Sizes - Real Reef

    Real Reef
    $6.99
    $5.59
    "By the Pound" means you are choosing the weight of your rock.  Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks. Selling individual rocks is impossible due to the fact th
    Add to Cart
  • On Sale 12%
    Coral Pro Salt Sack (55 lbs Makes 200 Gallons) - Red Sea
    On Sale 12%

    Coral Pro Salt Sack (55 lbs Makes 200 Gallons) - Red Sea

    Red Sea
    $97.99
    $86.23
    Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro...
    Add to Cart

View all products