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On Sale 15%
On Sale 15%Expel-P Internal Parasite & Worm Treatment (20 Count) - Fritz
Fritz Aquatics$23.19$19.71Expel-P (Levamisole HCl), is an anthelmintic (anti-worm) and immunostimulant agent. Expel-P is safe to use in freshwater and saltwater aquaria and is effective against many internal parasites,... -
On Sale 15%
On Sale 15%38 Gallon Rimless AIO Glass Nano Tank - PRO Series - Fiji Cube
Fiji Cube$729.99$620.49The Fiji Cube 38 Gallon Peninsula Rimless All-In-One (AIO) Glass Nano Tank—PRO Series is engineered for serious aquatic hobbyists who desire a stunning, three-sided view of their reef or freshwater... -
On Sale 15%
On Sale 15%76 Gallon Shallow Internal Middle Rimless Tank - Fiji Cube
Fiji Cube$1,549.99$1,317.49The Fiji Cube 76 Gallon Shallow INT (Internal) Middle Rimless Glass Tank is a large-format, premium display designed for the serious marine or freshwater hobbyist. Its unique shallow profile and... -
JUMP SK2400 Protein Skimmer (105 - 264 Gallon) - Maxspect
Maxspect$519.99The best value for your money Dual Intake + Dual Needle Wheel Protein Skimmer -
8 oz Spike Sphere Gracilaria (Gracilaria tikvahiae) - Algae Barn
AlgaeBarn$70.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ Live Macro Algae. With a bright red and burgundy hue and graced with sharp and pointy fronds, Spike Sphere Gracilaria adds a... -
1 oz Pom Pom Gracilaria (Gracilaria hayi) - Algae Barn
AlgaeBarn$15.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ Live Macro Algae. -
HI9810422 HALO2 Wireless pH Tester - Hanna Instruments
Hanna Instruments$164.99Our HALO2 Wireless Field pH Tester has a durable PEI body and spherical sensing bulb, perfect for use in the field. Open-source Bluetooth allows easy integration into current data logging... -
On Sale 15%
On Sale 15%Nano DC Protein Skimmer NSK-50 with DC Flow Controllable Pump (2nd Gen) - Fiji Cube
Fiji Cube$159.99$135.99Pro-Level Skimming for Nano Reefs The Fiji Cube 2nd Gen Nano DC Protein Skimmer NSK-50 is a high-performance filtration solution specifically designed for compact reef systems. Merging a minimalist... -
JUMP SK2600 Protein Skimmer (171 - 528 Gallon) - Maxspect
Maxspect$669.99The best value for your money Dual Intake + Dual Needle Wheel Protein Skimmer -
On Sale 15%
On Sale 15%Fiji-12 Advanced Reef Sump - 2nd Gen - Fiji Cube
Fiji Cube$334.99$284.74The Fiji Cube Fiji-12 Advanced Reef Sump (2nd Gen) is a premium filtration solution engineered for saltwater reef aquariums, combining elegant design with robust, high-functionality features. This... -
JUMP SK2200 Protein Skimmer (69 - 171 Gallon) - Maxspect
Maxspect$359.99The best value for your money Dual Intake + Dual Needle Wheel Protein Skimmer -
On Sale 15%
On Sale 15%Expel-P Internal Parasite & Worm Treatment (10 Count) - Fritz
Fritz Aquatics$13.99$11.89Expel-P (Levamisole HCl), is an anthelmintic (anti-worm) and immunostimulant agent. Expel-P is safe to use in freshwater and saltwater aquaria and is effective against many internal parasites,... -
On Sale 15%
On Sale 15%Texas Tea Phytoplankton (15 oz) - Home Brew Live Feeds
Home Brew Live Feeds$35.99$30.59Give your reef the "Black Gold" treatment with Home Brew Texas Tea, a potent, live multi-strain phytoplankton and beneficial bacteria blend. Engineered for ma -
JUMP SK2800 Protein Skimmer (237 - 713 Gallon) - Maxspect
Maxspect$829.99The best value for your money Dual Intake + Dual Needle Wheel Protein Skimmer -
Regal 150 SSS Space Saver Protein Skimmer (100-210 Gallons) - Reef Octopus
Reef Octopus$716.09The Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer supplies powerful filtration for aquariums up to 210 gallons where sump space may be limited. The Reef Octopus Regal 150-SSS is... -
4 oz Spike Sphere Gracilaria (Gracilaria tikvahiae) - Algae Barn
AlgaeBarn$40.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ Live Macro Algae. With a bright red and burgundy hue and graced with sharp and pointy fronds, Spike Sphere Gracilaria adds a... -
2 oz Red Ogo Gracilaria (Gracilaria parvispora) - Algae Barn
AlgaeBarn$25.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ -
Triton Sump 44 (44" x 16") - Trigger Systems
Trigger Systems$699.99The Triton series is designed to work with the Triton method which is becoming increasingly popular as it does not require water changes, which no one -
On Sale 15%
On Sale 15%NP-Active Pearls (150 mL) - Dr Tim's
Dr Tim's Aquatics$19.39$16.48NP-Active Pearls are 100% biodegradable polymer bio-pellets DESIGNED and TESTED for aquatic systems that act as a carbon source for the growth of beneficial bacteria resulting in the removal of... -
Phos-Start (75g) - Tropic Marin
Tropic Marin$24.99Tropic Marin® Phos-Start is based on the nutrient supply mechanisms seen in the natural coral reef environment. Insoluble, particulate excretions of fish or plankton supply corals with phosphate and... -
Classic 110ext Recirculating Protein Skimmer - Reef Octopus
Reef Octopus$400.77Affordable Recirculating Skimmer for Aquariums up to 130 Gallons Footprint: 10.4" x 9.25" | Body Diameter: 5" | Height: 22.8"Pump: Reef Octopus Aquatrance 1000s- Requires a 120-260GPH Feed Pump to... -
On Sale 15%
On Sale 15%32 Gallon Rimless AIO Glass Nano Tank w/ White Stand - PRO Series - Fiji Cube
Fiji Cube$999.99$849.99 -
Essentials Mixed Reef #2 (2700 ml) - ATI
ATI$29.95This 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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On Sale 15%
On Sale 15%FixIck (8 oz) Treatment for Ick & External Parasites - Fritz
Fritz Aquatics$11.99$10.19Fritz FixIck is a revolutionary new way to treat aquatic external parasites including Ick, Chilodonella, Trichodina and Tetrahymena. As one of the most common diseases most aquarists will encounter,... -
On Sale 15%
On Sale 15%FixIck (16 oz) Treatment for Ick & External Parasites - Fritz
Fritz Aquatics$18.39$15.63Fritz FixIck is a revolutionary new way to treat aquatic external parasites including Ick, Chilodonella, Trichodina and Tetrahymena. As one of the most common diseases most aquarists will encounter,... -
On Sale 15%
On Sale 15%Kalkwasser Powder Calcium Hydroxide (14 oz, 400 grams) - ESV
ESV$14.99$12.74Maintain 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... -
On Sale 15%
On Sale 15%NP-Active Pearls (900 mL) - Dr Tim's
Dr Tim's Aquatics$74.19$63.06NP-Active Pearls are 100% biodegradable polymer bio-pellets DESIGNED and TESTED for aquatic systems that act as a carbon source for the growth of beneficial bacteria resulting in the removal of... -
On Sale 15%
On Sale 15%Kalkwasser Powder Calcium Hydroxide 5 Gallon Bucket (22 lbs, 10 kg) - ESV
ESV$149.99$127.49Maintain 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... -
Essentials SPS Reef #1 (2700 ml) - ATI
ATI$26.95This 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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Remineraliz - Freshwater Mineral Balance (500mL) - Brightwell
Brightwell Aquatics$15.54Reconstitutes Reverse Osmosis, Deionized or Distilled Water for Freshwater Aquarium Use Overview Reconstitutes Reverse Osmosis, Deionized or Distilled Water for freshwater aquarium use. Adds... -
On Sale 15%
On Sale 15%Tunze Care Bacter 0220.005 40 ml (1.33 oz.) - Tunze
Tunze$29.99$25.49Care Bacter contains bacteria on a substrate of powdered Maerl gravel, which helps keep fresh or seawater aquaria clean. Mode of action: 1. Various green and filamentous algae will be greatly... -
2 oz Pom Pom Gracilaria (Gracilaria hayi) - Algae Barn
AlgaeBarn$25.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ Live Macro Algae. -
4 oz Pom Pom Gracilaria (Gracilaria hayi) - Algae Barn
AlgaeBarn$40.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ Live Macro Algae. -
4 oz Red Ogo Gracilaria (Gracilaria parvispora) - Algae Barn
AlgaeBarn$40.00At AlgaeBarn we treat, quarantine and inspect all of our CleanMacro™ -
SRO 5000ext Recirculating External Protein Skimmer - Reef Octopus
Reef Octopus$1,154.99Rated for Aquariums up to 600 Gallons Footprint: 18.7" x 15" | Body Diameter: 10" | Height: 27"Pump: Reef Octopus Bubble Blaster 5000- Requires a 800-1100GPH Feed Pump to Operate High-Performance... -
Classic 150ext Recirculating Protein Skimmer - Reef Octopus
Reef Octopus$531.29Affordable Recirculating Skimmer Rated for up to 200 Gallons Footprint: 12.2" x 10.4" | Body Diameter: 6" | Height: 25.6"Pump: Reef Octopus Aquatrance 2000s- Requires a 200-400GPH Feed Pump to... -
On Sale 15%
On Sale 15%Fiji-15 Advanced Reef Sump - 2nd Gen - Fiji Cube
Fiji Cube$354.99$301.74The Fiji Cube Fiji-15 Advanced Reef Sump (2nd Gen) is a premium, high-capacity filtration system designed for serious saltwater aquarium enthusiasts. It features a robust, elegant design and numerous... -
Essentials SPS Reef #2 (2700 ml) - ATI
ATI$26.95This 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...
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...