Products (1375)
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Magnesion - Liquid Magnesium Supplement (250mL) - Brightwell
Brightwell Aquatics$8.64Concentrated Magnesium Supplement for All Marine Fish & Reef Aquaria Overview Highly-concentrated ionic magnesium solution. Provides magnesium, which helps regulate the balance between calcium... -
Mini Neptune DOS Controller Board BLACK - Adaptive Reef
Adaptive Reef$114.99Adaptive Reef Boards Purpose-Built for the Neptune Systems DŌS Easily mount two DŌS pumps 15" x 15" size Includes hinges for easy access Available in Black or White The Neptune Systems DŌS... -
Reef Energy AB+ Plus Coral Food (5 L) - Red Sea
Red Sea$169.99An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming... -
MetroCleanse (10 Pack) Metronidazole - Fritz
Fritz Aquatics$7.99Fritz MetroCleanse is a safe and effective antibiotic and anti-parasitic treatment for several common protozoan and bacterial infections such as freshwater and saltwater Ich, Hexamita, and Oodinium,... -
MetroCleanse (20 Pack) Metronidazole - Fritz
Fritz Aquatics$12.79Fritz MetroCleanse is a safe and effective antibiotic and anti-parasitic treatment for several common protozoan and bacterial infections such as freshwater and saltwater Ich, Hexamita, and Oodinium,... -
Aquacultured Easter Egg Chalice Coral (Oxypora sp.) - ORA
ORA$67.99The ORA Easter Egg Chalice is a large polyp stony coral from the genus Oxypora. It’s a showstopper with ultra pink tissue sprinkled with bright yellow oral disks. This hardy and fast growing coral... -
Freshwater Eco-Balance Probiotic Bacteria (4 oz) - Dr Tim's
Dr Tim's Aquatics$10.89ECO-BALANCE PROBIOTIC BACTERIA -- H2O-PURE Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480... -
Marine Eco-Balance Probiotic Bacteria (16 oz) - Dr Tim's
Dr Tim's Aquatics$25.69Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480 gallons (1,817 liters)32 oz bottle treats 960... -
Reef Energy AB+ Plus Coral Food (500 ml) - Red Sea
Red Sea$29.99An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming... -
Reef Energy AB+ Plus Coral Food (250 ml) - Red Sea
Red Sea$21.99An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming... -
Reef Energy AB+ Plus Coral Food (1000 ml) - Red Sea
Red Sea$44.99An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming... -
Foundation Skeletal Elements ABC+ (1 KG) - Red Sea
Red Sea$34.99Red Sea’s Reef Foundation ABC+ is a uniquely formulated powder supplement containing all of the elements of Foundation A, B & C, plus Red Sea’s Coral Colors A & B (potassium, boron, iodine & bromine)... -
Freshwater Eco-Balance Probiotic Bacteria (16 oz) - Dr Tim's
Dr Tim's Aquatics$22.59ECO-BALANCE PROBIOTIC BACTERIA -- H2O-PURE Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480... -
Freshwater Eco-Balance Probiotic Bacteria (8 oz) - Dr Tim's
Dr Tim's Aquatics$17.09ECO-BALANCE PROBIOTIC BACTERIA -- H2O-PURE Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480... -
Marine Eco-Balance Probiotic Bacteria (8 oz) - Dr Tim's
Dr Tim's Aquatics$18.99Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480 gallons (1,817 liters)32 oz bottle treats 960... -
On Sale 15%
On Sale 15%Flatz (20 lbs) South Seas - Caribsea
Caribsea$123.90$105.32These natural porous calcium carbonate rocks are sliced on two sides to create ledges, platforms, and caves, and are perfect for fragging corals of all sizes. Flatz can also be used to design... -
Aquacultured Duncanopsammia Coral (Duncanopsammia axifuga) - ORA Chicago
ORA$94.99Duncanopsammia is a legendary Australian LPS coral. It closely resembles the orange Sun Coral however it is photosynthetic and does not require feeding. The intense green coloration of its tissue... -
Potassium Liquid Supplement (500 ml) - Tropic Marin
Tropic Marin$19.99Maintain vibrant coral coloration and health with Tropic Marin's Potassium supplement Potassium is an essential main nutrient for all organisms. In seawater the natural potassium concentration is... -
Marine Eco-Balance Probiotic Bacteria (4 oz) - Dr Tim's
Dr Tim's Aquatics$12.09Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480 gallons (1,817 liters)32 oz bottle treats 960... -
On Sale 15%
On Sale 15%Apex TRIDENT (Alk, Cal, Mag) Automatic Water Tester (With 2 Month Reagents) - Neptune Systems
Neptune Systems$699.99$594.99(Includes 2 Month Reagents) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information to... -
MC122 PH Controller w/ PH Electrode - Milwaukee Instruments
Milwaukee Instruments$208.15With Milwaukee's MC Controllers you can monitor and control pH and/or ORP levels. The Milwaukee Instruments "MC" Controllers have a user selectable set point and a visual "Power Activated" LED... -
Liquid Buffer (500 ml) - Tropic Marin
Tropic Marin$18.99Liquid pH buffer and KH creator for seawater aquariums Marine aquariums need optimal buffering for good coral growth with a stable carbonate hardness between 7 and 9 ° dH. In addition, fluctuations... -
On Sale 15%
On Sale 15%Apex TRIDENT (Alk, Cal, Mag) Automatic Water Tester (With 6 Month Reagents) - Neptune Systems
Neptune Systems$759.99$645.99(Includes 6 Months of Reagents) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information... -
On Sale 16%
On Sale 16%Apex TRIDENT ACM (Alk, Cal, Mag) Automatic Water Tester (Without Reagents) - Neptune Systems
Neptune Systems$679.99$569.99(Reagents SOLD SEPARATELY) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information to... -
ParaGuard (500 mL) - Seachem
Seachem$14.89Eradicates ectoparasites and fungal, bacterial, and viral lesions Safer to dose than formaldehyde, formalin, and methanol Will not adversely effect bio-filter ParaGuard™ is the only fish and... -
ParaGuard (2 L) - Seachem
Seachem$59.036Eradicates ectoparasites and fungal, bacterial, and viral lesions Safer to dose than formaldehyde, formalin, and methanol Will not adversely effect bio-filter ParaGuard™ is the only fish and... -
On Sale 12%
On Sale 12%(OPEN BOX) Apex TRIDENT ACM (Alk, Cal, Mag) Automatic Water Tester (Without Reagents) - Neptune Systems
Neptune Systems$679.99$599.99DAMAGED BOX - OPENED AND INSPECTED(Reagents SOLD SEPARATELY) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then... -
Reef BluePrint Isol8:Mg(SO)4 - Magnesium Sulfate (2.5 kg) - Captiv8 Aquaculture
Captiv8 Aquaculture$35.83Characteristics -
ParaGuard (100mL) - Seachem
Seachem$6.66Eradicates ectoparasites and fungal, bacterial, and viral lesions Safer to dose than formaldehyde, formalin, and methanol Will not adversely effect bio-filte -
Coral Inertia NRG+ (500 mL) - Brightwell Aquatics
Brightwell Aquatics$32.42Coral Inertia NRG+ Advanced superfood & combined multi-component supplement for all corals & their allies Overview All in One Superfood, designed to be dosed. Promotes coral health, rapid... -
KanaPlex (5gm) - Seachem
Seachem$7.98Broad Spectrum Antibiotic Treats fungal and bacterial fish diseases Easily absorbed through both skin and gills; ingestion not required KanaPlex™ is a blended kanamycin based medication that... -
ParaGuard (250 mL) - Seachem
Seachem$9.66Eradicates ectoparasites and fungal, bacterial, and viral lesions Safer to dose than formaldehyde, formalin, and methanol Will not adversely effect bio-filter ParaGuard™ is the only fish and... -
Reef Safe Medic (33 g) - Polyp Lab
PolypLab$39.99Medic is a highly effective water conditioner used to control external fish parasites present in both marine and freshwater environments. It contains a reef-safe oxidizing agent and is particularly... -
Coral Inertia NRG+ (250 mL) - Brightwell Aquatics
Brightwell Aquatics$24.02Coral Inertia NRG+ Advanced superfood & combined multi-component supplement for all corals & their allies Overview All in One Superfood, designed to be dosed. Promotes coral health, rapid... -
Seachem Laboratories MetroPlex - (5 Grams) - Seachem
Seachem$7.98Treats protozoan parasites and anaerobic bacterial diseases Little danger of overdose No impact on bio-filter Well suited for medicated food mix for internal parasites MetroPlex™ is an... -
Seachem Laboratories MetroPlex - (100 Grams) - Seachem
Seachem$84.96Treats protozoan parasites and anaerobic bacterial diseases Little danger of overdose No impact on bio-filter Well suited for medicated food mix for internal parasites MetroPlex™ is an... -
KanaPlex (100gm) - Seachem
Seachem$99.13Broad Spectrum Antibiotic Treats fungal and bacterial fish diseases Easily absorbed through both skin and gills; ingestion not required KanaPlex™ is a blended kanamycin based medication that... -
Reef BluePrint Isol8:Mg(SO)4 - Magnesium Sulfate (1.0 kg) - Captiv8 Aquaculture
Captiv8 Aquaculture$19.37Characteristics -
Shrimp Blackwater Clear (250mL) - Brightwell
Brightwell Aquatics$10.36Provides humic substances for all shrimp & freshwater fish planted biotope aquaria with much less color Overview Shrimp safe and copper free. Establishes similar water conditions to those found... -
SpongExcel (60mL) - Brightwell
Brightwell Aquatics$16.07Supplement for Increasing Growth Rates of Sponges & Gastropods Overview Ionic silica solution for enhancing growth rates of sponges and gastropods. 1 drop per gallon of water increases ionic...
Featured Products
On Sale
11%
On Sale
11%
(OPEN BOX) AI Prime 16HD Reef Aquarium LED, Black - AquaIllumination
AquaIllumination
$279.99
$249.99
UNUSED CUSTOMER RETURN
On Sale
20%
On Sale
20%
(Three Pack) Random Mystery ULTRA COLOR Rock Flower Anemone Coral (3/4" - 1") - SAQ Coral Farm
Saltwater Coral Farm
$249.99
$199.99
Three random ULTRA Mystery Rock Flower Anemone coral 3/4" - 5"+ in size.
Pictured Anemones are examples of some of the types of random ULTRA Mystery Anemones that may be sent to you. If you are...
On Sale
20%
On Sale
20%
(10 Pack) Random Mystery Rock Flower Anemone Coral (3/4" - 5") - SAQ Coral Farm
Saltwater Coral Farm
$199.99
$159.99
Ten Random Mystery Rock Flower Anemone Coral 3/4" - 5"+ in size.
Pictured Anemones are examples of some of the types of random Mystery Anemones that may be sent to you. If you are looking to...
On Sale
15%
On Sale
15%
WIFI DongleXE for Kessil A360X - Kessil
Kessil
$109.00
$92.65
Unlock global cloud control and effortless wireless lighting management with the Kessil WiFi DongleXE. Designed to plug directly into the K-Link port of compatible Kessil LED fixtures, the WiFi...
On Sale
15%
On Sale
15%
AP9XE Aquarium LED Light - Kessil
Kessil
$959.00
$815.15
Elevate your reef's growth, coloration, and shimmer with the Kessil AP9XE, Kessil's premier flagship sa
LRS Premium Green Nori (20 Half Sheets / 1 oz) (Porphyra yezoensis) Seaweed - LRS Foods
LRS
$9.99
Give Your Fish the Purest, Most Nutritious Seaweed on the Market!
20x 1/2 Sheets 7.5" x 4"
Introducing LRS Premium Green Seaweed, the superior choice for discerning aquarists who demand the best...
On Sale
10%
On Sale
10%
LRS Reef Frenzy (7 oz Pack) - Superior Nutrition All-in-One Frozen Food for Marine Fish, Corals & Invertebrates
LRS
$21.99
$19.79
Reef Frenzy is a premium, all-in-one food for marine fish, corals, and invertebrates, designed to provide all the necessary nutrients for a thriving reef aquarium. Favored by hobbyists and endorsed...
On Sale
12%
On Sale
12%
Apex DOS QD Quiet Drive Automatic Dosing System - Neptune System
Neptune Systems
$374.99
$329.00
DŌS QuietDrive - Dose. Automate. Protect.
New QuietZone Modes for Reduced Noise
New Continuous Duty Modes
Same Reliable DŌS Hardware
Compatible with A2 and A3 Series Apex Controllers
In the...
On Sale
10%
On Sale
10%
Orbit 4 Cross-Flow Gyre Wave Pump - AquaIllumination
AquaIllumination
$349.00
$314.00
Flow Comes Full Circle
Versatile Cross-Flow Pump
Control with MyAI, Mobius, or MXM
Four Easy-to-Use Pump Modes
Ideal for Aquariums 20 Gallons and Larger
Orbit pumps produce a unique type of...
On Sale
20%
On Sale
20%
Axis 20 Centrifugal Sump Pump (185 GPH) - AquaIllumination
AquaIllumination
$99.00
$79.00
Big Pump Features in Pumps of All Sizes
Control with MyAI, Mobius, or MXM
Three Easy-to-Use Pump Modes
Ideal for All-In-One Aquariums up to 15 Gallons
Axis pumps offer full control, wireless...
On Sale
13%
On Sale
13%
39" Blade Coral Grow Smart Strip LED Light - AquaIllumination
AquaIllumination
$379.99
$330.00
The Blade Grow offers immense power in a thin package. Coral Grow features a LED mix that maximizes spectral peaks needed for coral photosynthesis. Use alone or augment with the Blade Glow for a...
On Sale
4%
On Sale
4%
A3 Apex PRO System (A3PROSYS) - Neptune Systems
Neptune Systems
$974.99
$933.99
Key New Features in our A3 Series:
The A3 Pro will include all new, industry-first, Liquid Level Sensor (LLS) which will have the ability to measure and monitor the depth of water and a new optical...
On Sale
7%
On Sale
7%
A3 Apex System (A3APEXSYS) - Neptune Systems
Neptune Systems
$659.99
$615.00
Key New Features in our A3 Series:
The A3 Apex will include a new Magnetic Optical Sensor that is designed to better prevent water incursion and includes our classic Solid Surface Leak Detector...
On Sale
12%
On Sale
12%
Radion XR30 G6 Pro LED Light Fixture - EcoTech Marine
Ecotech Marine
$999.00
$879.00
In the aquarium, enjoy richer colors, pop more fluorescence and create the ultimate balance between crisp and actinic. From its inception, Radion has set the standard for what full spectrum aquarium...
On Sale
12%
On Sale
12%
Radion XR30 G6 Blue LED Light Fixture - EcoTech Marine
Ecotech Marine
$999.00
$879.00
In the aquarium, enjoy richer colors, pop more fluorescence and create the ultimate balance between crisp and actinic. From its inception, Radion has set the standard for what full spectrum aquarium...
On Sale
12%
On Sale
12%
Radion XR15 G6 Pro LED Light Fixture - EcoTech Marine
Ecotech Marine
$549.88
$483.89
In the aquarium, enjoy richer colors, pop more fluorescence and create the ultimate balance between crisp and actinic. From its inception, Radion has set the standard for what full spectrum aquarium...
On Sale
12%
On Sale
12%
Radion XR15 G6 Blue LED Light Fixture - EcoTech Marine
Ecotech Marine
$549.88
$483.89
In the aquarium, enjoy richer colors, pop more fluorescence and create the ultimate balance between crisp and actinic. From its inception, Radion has set the standard for what full spectrum aquarium...
HI97115UC Bluetooth Marine Master Multiparameter Checker - Hanna Instruments
Hanna Instruments
$499.99
Hanna Instruments HI97115UC Marine Master Bluetooth Multiparameter Checker
Precision Testing for the Serious Reef Hobbyist
Achieve unparalleled accuracy and control over your reef aquarium's water...
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 are clearly...
On Sale
15%
On Sale
15%
AI Prime 16HD Reef Aquarium LED, Black - AquaIllumination
AquaIllumination
$279.99
$237.00
The AI Prime 16HD is a customizable LED light for saltwater aquariums. It's a full spectrum light that includes a moonlight channel.&nb