SaltwaterAquarium - Aquarium Supplies

Featured Products

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...

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Pro Reef Salt 2 kg (16 Gallon) - Tropic Marin

Tropic Marin

$18.99

Tropic Marin Pro-Reef Sea Salt At a Glance The Gold Standard for Modern Reef Keeping. Tropic Marin Pro-Reef is the premium, pharmaceutical-grade salt mix engineered specifically for reef aquariums...

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VarioS 12 Commercial Pressure Rated Circulation Pump - Reef Octopus

Reef Octopus

$2,399.99

Detailed coming soon.

Out of stock
Replacement Down Pipe w/ReefGate for REEFER 170-200 - Red Sea

Red Sea

$75.00

Quiet. Smooth. Precise. Take full control of your aquarium’s downflow with the Red Sea ReefGate Valve Upgrade Kit. Designed specifically for reef hobbyists, this high-precision gate valve replaces...

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ReefGate Valve Upgrade Kit for Reefers with 40mm / 1-25" Piping - Red Sea

Red Sea

$85.00

Quiet. Smooth. Precise. Take full control of your aquarium’s downflow with the Red Sea ReefGate Valve Upgrade Kit. Designed specifically for reef hobbyists, this high-precision gate valve replaces...

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B-Ionic Nitrate (16 oz) - ESV

ESV

$19.99

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...

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

ESV

$39.99

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...

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

ESV

$14.99

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...

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HYDROS Duet: The Ultimate Super-Duty Dosing, Water Change & Control Hybrid

Hydros

$799.99

HYDROS Duet: The Ultimate Super-Duty Dosing & Control Hybrid Take total control of your aquarium’s most demanding liquid management tasks with the HYDROS Duet. Engineered for hobbyists who...

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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...

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Marine Grazing Pellets 8mm (2.82 oz) - Vialtis

Vitalis

$20.99

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...

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Marine Grazing Pellet Station - Vitalis

Vitalis

$8.99

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...

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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...

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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...

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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...

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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...

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

Fiji Cube

$4,499.99

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...

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

Fiji Cube

$3,999.99

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...

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Small-In-One Nomad Portable Traveling Aquarium (0.5 Gallon) - PNW Custom

PNW Custom

$349.99

0.5 Gallon Fully Sealed Traveling Aquarium The world’s first fully sealed traveling aquarium. The Small-In-One Nomad is a compact 0.5-gallon aquarium designed for safely transporting and displaying...

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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...

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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...

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PNS Deep Cycle (1 Gallon) Live Bacteria - Hydrospace

Hydrospace

$249.99

A Functional Cohort of

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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

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MEGA Filtra 950 SDC Aquarium Canister Filter Up to 250 Gal (568 gph) - Sicce

Sicce

$499.99

Experience the next generation of aquarium filtration with the Sicce Mega Filtra Series. Entirely designed and manufactured in Italy, these premium canister filters combine heavy-duty

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Absolute Ocean 2 x 10 Liter Set (45 Gallons) Perfect Seawater Concentrate - ATI

ATI

$69.95

ATI Absolute Ocean in the 20.4-liter set is the ultimate high-volume seawater concentrate for serious reefers and large-scale systems. This 20x liquid concentrate provides a faster, cleaner, and more...

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Absolute Ocean 2 x 2.700ml Set - Perfect Seawater Concentrate - ATI

ATI

$29.95

ATI Absolute Ocean is a revolutionary 20x seawater concentrate that completely redefines how reef keepers approach water changes and new tank setups. Unlike traditional synthetic salt mixes that...

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Essentials SPS Reef 20 Liter Set (Part 1 & 2) - ATI

ATI

$149.95

The ATI Essentials 2 x 10-Liter Set is a professional-grade, two-part dosing system designed for the comprehensive care of modern reef aquariums. Engineered to provide all the essential elements...

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Essentials SPS Reef #2 (2700 ml) - ATI

ATI

$26.95

This ATI Essentials SPS #1 (KH) is a high-purity alkalinity concentrate designed specifically for high-demand Small Polyp Stony (SPS) coral systems. As the first component of the Essentials SPS...

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Essentials SPS Reef #1 (2700 ml) - ATI

ATI

$26.95

This ATI Essentials SPS #1 (KH) is a high-purity alkalinity concentrate designed specifically for high-demand Small Polyp Stony (SPS) coral systems. As the first component of the Essentials SPS...

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Essentials Mixed Reef 20 Liter Set (Part 1 & 2) - ATI

ATI

$169.95

This ATI Essentials Mixed Reef 20-Liter Set is designed for the modern aquarium enthusiast looking to maintain high-level reef stability with maximum convenience. Engineered for systems that host a...

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Essentials Mixed Reef #2 (2700 ml) - ATI

ATI

$29.95

This ATI Essentials SPS Reef set is a high-performance, two-part dosing system specifically engineered for dedicated Small Polyp Stony (SPS) coral environments. Designed to simplify the maintenance...

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Essentials Mixed Reef #1 (2700 ml) - ATI

ATI

$29.95

This ATI Essentials SPS Reef set is a high-performance, two-part dosing system specifically engineered for dedicated Small Polyp Stony (SPS) coral environments. Designed to simplify the maintenance...

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Multi Standard Reference Solution (1000 mL) - ATI

ATI

$26.95

ATI Multi Standard is a high-precision seawater reference solution used to verify and calibrate aquarium test kits and salinity measuring devices. It contains fixed concentrations of salinity,...

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Magnetic Levitation Return Pump - Tunze

$0.00

TUNZE Professional Return Pump – The Silent Heart of Your Reef Experience the pinnacle of aquarium engineering with the new TUNZE Return Pump. For years, reefers have asked for a return pump that...

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Intelligent Dosing Pump - Tunze

Tunze

$0.00

TUNZE Dosing Pump – Professional Precision & Silent Reliability Experience the next generation of reef maintenance with the TUNZE Dosing Pump. Engineered with a focus on industrial-grade...

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SHINE Aquarium Glass & Acrylic Cleaner (10 oz) - Flipper

Flipper

$14.99

Flipper cleans the inside. SHINE finishes the outside. SHINE is a purpose-built exterior cleaner for aquarium glass and acrylic, plus the surrounding surfaces that frame every tank. Its...

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Flipper Invisi-Lid CLEAR Small - Build Your own Aquarium LID - Flipper

Flipper

$40.00

The perfect lid for every tank. Invisi-Lid is a modular, tool-free, reusable aquarium lid that fits most popular freshwater and saltwater tanks with a combined length + width up to 64". One lid. Many...

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Flipper Invisi-Lid BLACK Small - Build Your own Aquarium LID - Flipper

Flipper

$40.00

The perfect lid for every tank. Invisi-Lid is a modular, tool-free, reusable aquarium lid that fits most popular freshwater and saltwater tanks with a combined length + width up to 64". One lid. Many...

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On Sale 12%

On Sale 12%

(OPEN BOX) ReefWave 45 Aquarium Gyre Flow Pump - Red Sea

Red Sea

$409.00

$359.99

UNUSED CUSTOMER RETURN Based on the Gyre patented, cross-flow technology, the ReefWave pumps provide optimal REEF-SPEC® water flow for corals in a wide range of reefscapes, regardless of their...

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On Sale 10%

On Sale 10%

(OPEN BOX) Upgrade Kit - Quantum 160 EQ Protein Skimmer (up to 125 Gallons) - NYOS Aquatics

NYOS

$299.99

$269.99

UNUSED CUSTOMER RETURN Transform your existing NYOS Quantum® skimmer into a smart, autonomous, and fully controllable device. This upgrade kit integrates seamlessly with Mobius™ (Ecotech Marine) and...

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On Sale 31%

On Sale 31%

(OPEN BOX) Classic 15 Watt UV Black 3/4" Barb Fitting- Aqua Ultraviolet

Aqua Ultraviolet

$334.21

$229.99

UNSED CUSTOMER RETURN Aqua Ultraviolet UV Sterilizers will eradicate algae, bacteria, and protozoa without any harmful chemicals or additives! UV lamps emit a wavelength that will alter and disrupt...

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On Sale 11%

On Sale 11%

(OPEN BOX) ReefMat 1200 Fleece Roller Filter - Red Sea

Red Sea

$449.00

$399.99

UNUSED CUSTOMER RETURN The ReefMat is a plug & play, fully automated, smart fleece roller filter that keeps your aquarium water crystal clear for weeks at a time. Installation Instructions for...

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On Sale 10%

On Sale 10%

(OPEN BOX) Reefer RSK-300 Protein Skimmer - Red Sea

Red Sea

$399.00

$359.99

BOX DAMAGED - UNIT FINE Designed with hobbyists needs in mind the highly effective flow dynamics of the REEFER™ Skimmer will maintain an optimal ORP (REDOX) level of over 350mv, a level...

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On Sale 10%

On Sale 10%

(OPEN BOX) ReefMat 250 Fleece Roller Filter - Red Sea

Red Sea

$349.00

$314.99

UNUSED CUSTOMER RETURN The ReefMat is a plug & play, fully automated, smart fleece roller filter that keeps your aquarium water crystal clear for weeks at a time. Installation Instructions for...

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Best-Selling Products

$$$ Money Saver Aquarium Dry Live Rock (by the lb) - SaltwaterAquarium

SaltwaterAquarium

$3.25

"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

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

MarcoRocks

$3.49

"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

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HI755-26 HI772-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments

Hanna Instruments

$18.99

This reagent works with both the 755 & 772 Hanna checker. It may come with the tag 755-26 or 772-26, both reagents work with both checkers. Extreme Accuracy. Easy to Test in 4 Steps -...

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FritzPRO R.P.M. Salt Mix Box (55 lbs - Makes 200 Gallons) - Fritz Aquatics

Fritz Aquatics

$84.99

Fritz ProAquatics Reef Pro Mix (RPM) is manufactured using only the highest quality raw materials. Formulated by researchers and marine scientists, RPM contains all of the necessary major and minor...

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

MarcoRocks

$6.89

"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

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

Hanna Instruments

$26.99

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...

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

Red Sea

$20.00

Efficient, high-flow, skimmer friendly non-woven polyester fleece-mat rolls. Installation Instructions for EVERY Red Sea Model - https://www.redseafish...

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

Red Sea

$32.00

Efficient, high-flow, skimmer friendly non-woven polyester fleece-mat rolls. Installation Instructions for EVERY Red Sea Model - https://www.redseafish...

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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. ...

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HI774-25 Ultra Low Range Phosphate Checker Reagents - Hanna Instruments

Hanna Instruments

$18.99

Reagents for the HI774. Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a...

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Emerald Crab (Mithraculus sculptus) - Cleanup Crew

Clean Up Crews

$14.99

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,...

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

Tropic Marin

$132.99

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...

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HI713-25 Phosphate Low Range Checker Reagent (25 Tests) - Hanna Instruments

Hanna Instruments

$18.99

Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read...

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

SaltwaterAquarium

MSRP:

$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...

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

Lifegard

$2.49

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...

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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.

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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...

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

SaltwaterAquarium

MSRP:

$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...

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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...

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

Red Sea

$97.99

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...

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

Real Reef

$6.99

"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

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HI736-25 Phosphorus Ultra Low Range Marine Reagent (25 Tests) - Hanna Instruments

Hanna Instruments

$18.99

The HI736-25 are the replacement reagents for the HI736 Phosphorus Ultra Low Range Checker HC. These high quality reagents are manufactured in our state-of-the-art facility and are clearly marked...

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

Real Reef

$6.99

"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

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

Red Sea

$97.99

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...

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