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Vitamarin-C Supplement (500 ML) - Brightwell
Brightwell Aquatics$42.01Concentrated Vitamin-C Supplement for all Marine Fish & Reef Aquaria Overview Highly-concentrated vitamin-C solution. Buffered; will not impact pH when used as directed. Stronger than... -
Lugols Solution (30 ML) - Brightwell
Brightwell Aquatics$21.10Overview Brightwell Aquatics Lugol’s is an extremely powerful iodine solution. It should only be used by advanced reef aquarists to dose iodine as well as to create a dip for corals and their... -
(THREE PACK) Purigen Bagged (100 mL) - Seachem
Seachem$31.14Triple Pack - Three Purigen 100 ML 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... -
Liquid Reef (500mL) - Brightwell
Brightwell Aquatics$26.28Concentrated Reef Builder for Coralline Algae, Corals, Clams & other Marine Invertebrates Overview Complete source of the elements and molecules that are directly used by corals, clams, and... -
On Sale 15%
On Sale 15%Mardel Maracyn (20 Count) - Fritz Aquatics
Fritz Aquatics$22.39$19.03Provides Relief from Bacterial Infections in Fresh and Salt Water Aquariums Body Fungus Gill Disease Popeye Maracyn is a specially compounded broad-spectrum antibiotic (erythromycin) which... -
Koralle-VM (250 mL) - Brightwell
Brightwell Aquatics$18.24Advanced Vitamin, Minor, & Trace Element Supllement for all Marine Fish & Reef Aquaria Overview Unique vitamin and minor and trace element complex for establishing and replacing substances... -
Koralle-VM (2L) - Brightwell
Brightwell Aquatics$89.69Advanced Vitamin, Minor, & Trace Element Supllement for all Marine Fish & Reef Aquaria Overview Unique vitamin and minor and trace element complex for establishing and replacing substances... -
FlorinBacter7 (500mL) - Brightwell
Brightwell Aquatics$23.87Complete Bioculture for all Freshwater and Planted Aquaria Overview Suspension of non-pathogenic aerobic and anaerobic microbes, as well as natural enzymes, specifically formulated to establish... -
Koralle-VM (500 mL) - Brightwell
Brightwell Aquatics$33.02Advanced Vitamin, Minor, & Trace Element Supllement for all Marine Fish & Reef Aquaria Overview Unique vitamin and minor and trace element complex for establishing and replacing substances... -
On Sale 15%
On Sale 15%Mardel Maracyn (10 Count) - Fritz Aquatics
Fritz Aquatics$15.99$13.59Provides Relief from Bacterial Infections in Fresh and Salt Water Aquariums Body Fungus Gill Disease Popeye Maracyn� is a specially compounded broad-spectrum antibiotic (erythromycin) which... -
On Sale 15%
On Sale 15%Poly Fiber Media Pad 10x18" - Acurel
All Misc Brands$9.49$8.07Like all our media pads, our long-lasting polyfiber material is up to twice as thick and is much more rigid than competing pads, enabling them to fit tighter, hold their shape longer, filter more... -
BioDigest 6 - Multi-Strain Bacteria for Biological Filtration - Prodibio
Prodibio$19.99BioDigest is the result of over 25 years of research in the aquarium industry. It is a concetrated consortium of bacterial strains that work in synergy. BioDigest is composed of natural bacterial... -
BioDigest 12 - Multi-Strain Bacteria for Biological Filtration - Prodibio
Prodibio$29.99BioDigest is the result of over 25 years of research in the aquarium industry. It is a concetrated consortium of bacterial strains that work in synergy. BioDigest is composed of natural bacterial... -
MicroBacter Purple M (250 ML - 8 oz) - Brightwell
Brightwell Aquatics$14.09Live Beneficial Bacteria – Introduces a diverse range of shelf stable photosynthetic bacteria that work alongside MicroBacter 7 and MicroBacter Clean for enhanced waste breakdown and microbial... -
BioDigest 30 - Multi-Strain Bacteria for Biological Filtration - Prodibio
Prodibio$49.99BioDigest is the result of over 25 years of research in the aquarium industry. It is a concetrated consortium of bacterial strains that work in synergy. BioDigest is composed of natural bacterial... -
MicroBacter Purple M (500 ML - 16 oz) - Brightwell
Brightwell Aquatics$25.30Live Beneficial Bacteria – Introduces a diverse range of shelf stable photosynthetic bacteria that work alongside MicroBacter 7 and MicroBacter Clean for enhanced waste breakdown and microbial... -
MicroBacter Purple M (1000 ML - 32 oz) - Brightwell
Brightwell Aquatics$42.59Live Beneficial Bacteria – Introduces a diverse range of shelf stable photosynthetic bacteria that work alongside MicroBacter 7 and MicroBacter Clean for enhanced waste breakdown and microbial... -
MicroBacter Purple M (2L) - Brightwell
Brightwell Aquatics$81.30Live Beneficial Bacteria – Introduces a diverse range of shelf stable photosynthetic bacteria that work alongside MicroBacter 7 and MicroBacter Clean for enhanced waste breakdown and microbial... -
On Sale 15%
On Sale 15%Phosphate Remover Media Pad 10x18" - Acurel
All Misc Brands$9.49$8.07Like all our infused media pads, our long-lasting polyfiber material is up to twice as thick and is much more rigid than competing pads, enabling them to fit tighter, hold their shape longer, filter... -
MatrixCarbon (500 mL) - Seachem
Seachem$13.11MatrixCarbon™ is a truly unique activated carbon. It is formed as a spherical bead for optimum hydrodynamics, and will not pack. It permits maximum water flow and contact with its high density of... -
MatrixCarbon (2 L) - Seachem
Seachem$45.24MatrixCarbon™ is a truly unique activated carbon. It is formed as a spherical bead for optimum hydrodynamics, and will not pack. It permits maximum water flow and contact with its high density of... -
REFUEL Amino Acid Enriched Bacterial Food Source (500 ml) - Polyplab
PolypLab$74.99Refuel is a unique fusion of organic carbon sources enriched with amino acids. It is a safe and highly effective carbon-based bacterial food source that will steadily improve water quality. The... -
SeaGel (250 mL) - Seachem
Seachem$7.91SeaGel™ is a blend of MatrixCarbon™ and PhosGuard™. MatrixCarbon™ is an ultracapacity carbon for the removal of organic and color impurities. PhosGuard™ is a powerful remover of phosphate, silicate,... -
SeaGel (2 L) - Seachem
Seachem$41.06SeaGel™ is a blend of MatrixCarbon™ and PhosGuard™. MatrixCarbon™ is an ultracapacity carbon for the removal of organic and color impurities. PhosGuard™ is a powerful remover of phosphate, silicate,... -
SeaGel (500 mL) - Seachem
Seachem$13.45SeaGel™ is a blend of MatrixCarbon™ and PhosGuard™. MatrixCarbon™ is an ultracapacity carbon for the removal of organic and color impurities. PhosGuard™ is a powerful remover of phosphate, silicate,... -
MatrixCarbon (250 mL) - Seachem
Seachem$7.73MatrixCarbon™ is a truly unique activated carbon. It is formed as a spherical bead for optimum hydrodynamics, and will not pack. It permits maximum water flow and contact with its high density of... -
Reef Zooplankton (250 mL) - Seachem
Seachem$8.82Reef Zooplankton™ is a concentrated blend of marine zooplankton designed to provide the essential fatty acids, proteins, vitamins, amino acids, with biological carotenoids for coral growth. The... -
MatrixCarbon (4 L) - Seachem
Seachem$90.49MatrixCarbon™ is a truly unique activated carbon. It is formed as a spherical bead for optimum hydrodynamics, and will not pack. It permits maximum water flow and contact with its high density of... -
Reef Enhance - Reef Brite
Reef Brite$26.71Reef Enhance™ creates real MICROPLANKTON for your reef aquarium. When used in conjunction with popular coral foods Reef Enhance™ improves the utilization for even better results. Reef Enhance™ is... -
On Sale 15%
On Sale 15%Mardel Coppersafe (16 oz) - Fritz Aquatics
Fritz Aquatics$26.39$22.43Chelated Copper Treatment for the Infections of: ICH Flukes (Gyrodactylus) Anchor worms Velvet/Protozoan diseases other external parasites. Coppersafe® solution remains active for over... -
Ecotech Marine Custom WHITE Controller Board - Adaptive Reef
Adaptive Reef$379.99Take your equipment organization to the next level with custom controller boards from Adaptive Reef. The Neptune Systems Controller Board is a modular wire management system with cutouts and spacing... -
Magnesion-P - Powder Magnesium Supplement (200g) - Brightwell
Brightwell Aquatics$15.86Magnesium Supplement for All Marine Fish & Reef Aquaria Overview High-purity, anhydrous powdered magnesium blend. Provides magnesium, which helps regulate the balance between calcium and... -
Ecotech Marine Custom BLACK Controller Board - Adaptive Reef
Adaptive Reef$379.99Take your equipment organization to the next level with custom controller boards from Adaptive Reef. The Neptune Systems Controller Board is a modular wire management system with cutouts and spacing... -
On Sale 15%
On Sale 15%Carbon Media Pad 10x18" - Acurel
All Misc Brands$9.49$8.07Like all our infused media pads, our long-lasting polyfiber material is up to twice as thick and is much more rigid than competing pads, enabling them to fit tighter, hold their shape longer, filter... -
Reef Zooplankton (500 mL) - Seachem
Seachem$16.17Reef Zooplankton™ is a concentrated blend of marine zooplankton designed to provide the essential fatty acids, proteins, vitamins, amino acids, with biological carotenoids for coral growth. The... -
SeaGel (100 mL) - Seachem
Seachem$5.87SeaGel™ is a blend of MatrixCarbon™ and PhosGuard™. MatrixCarbon™ is an ultracapacity carbon for the removal of organic and color impurities. PhosGuard™ is a powerful remover of phosphate, silicate,... -
CustomCradle Pro Magnetic Tube Holder - Innovative Marine
Innovative Marine$36.00Holds up to 4 Tubes A magnetically mounted probe holder that organizes your dosing tube lines in the most simple and efficient way possible. Other tube holders can lead to an unorganized disaster... -
MatrixCarbon (1 L) - Seachem
Seachem$22.62MatrixCarbon™ is a truly unique activated carbon. It is formed as a spherical bead for optimum hydrodynamics, and will not pack. It permits maximum water flow and contact with its high density of... -
Razor Freshwater System Cleaner (500ML) - Brightwell
Brightwell Aquatics$21.24Unique Freshwater Systemic System Cleaner designed to target and clean surfaces of rock, driftwood decorations and tank walls Overview Plant safe, complex systemic cleaning polymer product,... -
On Sale 15%
On Sale 15%Comline DOC Skimmer 9001 DC (9001.001) - Tunze
Tunze$219.99$186.99The flash skimming principle enables highly efficient foam production. Organic-rich surface water is mixed thoroughly with small air bubbles in the TUNZE® Foamer. On the surface of the air bubbles,...
Featured Products
AR836 Algae Reactor 2026 (Commercial) - Geo's Reef
Geo's Reef
$1,849.00
The NEW 2026 GEO AR836 Algae Reactor Commercial is designed to filter your aquarium water by removing phosphates, nitrates, Co2 and help raise your aquarium pH without the use of artificial media...
On Sale
15%
On Sale
15%
Red Acan Colony WYSIWYG - SAQ Coral Farm
Saltwater Coral Farm
$129.99
$110.49
Red Acan 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 Acan Colony WYSIWYG is a fast...
7" NOSOK Filter Sock No Sock Replacement Silencer Cup - VCA
VCA Vivid Creative
$74.95
Stop Washing Dirty Filter Socks Forever
Nobody likes dealing with a laundry bucket full of dirty, foul-smelling 7-inch filter socks. Traditional filter cups choke flow quickly, and automated fleece...
Free ICP Test Kit - ATI
ATI
$19.99
FREE ON ALL ORDERS OVER $150 - Just add to Cart!
ATI Free Seawater ICP
Free ICP test for your seawater!
With the ATI ICP test service you can send ATI a seawater sample. ATI will test your...
Carbo Ex Filter (1.5 Liter) - Includes 1000g Granulate - ATI
ATI
$44.95
ATI® Carbo Ex Filter 1.5L
The ATI® Carbo Ex Filter 1.5Lis a ready-to-use, single-use filter cartridge containing 1,000 grams (approx. 1.25 liters) of ATI Carbo Ex Media and a fine dust filter.ATI®...
ION-B Ca/Mg+ Powder (2.245g - Makes 6,000 mL) - NYOS
NYOS
$44.99
The Nyos® ION-B method is a state-of-the-art dosing system for modern reef tanks. The system is simple and intuitive and can be individually adapted to the needs of your aquarium.
With just two...
ION-B Ca/Mg+ Powder (1,122g - Makes 3,000 mL) - NYOS
NYOS
$24.99
The Nyos® ION-B method is a state-of-the-art dosing system for modern reef tanks. The system is simple and intuitive and can be individually adapted to the needs of your aquarium.
With just two...
ION-B ALK/pH+ Powder (1,342g - Makes 6,000 mL) - NYOS
NYOS
$44.99
The Nyos® ION-B method is a state-of-the-art dosing system for modern reef tanks. The system is simple and intuitive and can be individually adapted to the needs of your aquarium.
With just two...
ION-B ALK/pH+ Powder (671g - Makes 3,000 mL) - NYOS
NYOS
$24.99
The Nyos® ION-B method is a state-of-the-art dosing system for modern reef tanks. The system is simple and intuitive and can be individually adapted to the needs of your aquarium.
With just two...
On Sale
10%
On Sale
10%
BioSpace Reactor 8-2 (8" x 21") Up to 500 Gallons - Bashsea
Bashsea
$599.99
$539.99
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...
On Sale
10%
On Sale
10%
BioSpace Reactor 6-2 (6" x 21") Up to 225 Gallons - Bashsea
Bashsea
$399.99
$359.99
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...
On Sale
10%
On Sale
10%
BioSpace Reactor 4-2 (4" x 21") Up to 110 Gallons - Bashsea
Bashsea
$219.99
$197.99
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...
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...
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...
ReefControl Power 8 Deluxe w/Panel - Red Sea
Red Sea
$389.00
Get the best of both worlds with the ReefControl Power 8 Deluxe. This kit combines the 8-socket ReefBeat-controlled smart power center with the dedicated manual Control Panel 8, giving you the...
ReefControl Power 8 - Red Sea
Red Sea
$319.00
Welcome to the future of aquarium management. The ReefControl Power 8 is more than just a power strip; it's the brain of your operation, integrating seamlessly into the Red Sea ReefBeat ecosystem to...
ReefControl Pro Deluxe Kit Aquarium Controller - Red Sea
Red Sea
$699.00
The ReefControl Pro is the flagship smart controller for the Red Sea ReefBeat ecosystem. It acts as the central brain for all your monitoring and automation, allowing you to connect up to 7 ReefSense...
ReefControl Pro Aquarium Controller - Red Sea
Red Sea
$429.00
Take full command of your aquarium with the ReefControl Pro, the ultimate smart controller for the Red Sea ReefBeat ecosystem. Monitor up to 7 different ReefSense digital probes, automate your...
ReefControl Lite Aquarium Controller - Red Sea
Red Sea
$329.00
The ReefControl Lite is your essential smart controller for staying on top of your aquarium's most critical parameters. Monitor a wide range of ReefSense digital probes, receive real-time...
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...