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On Sale 30%
ARID N24 Macroalgae Reactor - Pax Bellum
Pax Bellum$949.00$664.30The concept of using macroalgae as a method of nutrient export is not new. However, the introduction of the ARID (Algae Remediation Illuminated Device) the original, patented macroalgae reactor by Pax Bellum is a quantum leap forward. This ingenious... -
MiniMax Pro Midsize Reactor Replacement Sponges (4 Pack)- Innovative Marine
Innovative Marine$9.00MiniMax Pro Midsize Reactor Replacement Sponges Part Number: 730205 4 Pieces Per Order Fits: MiniMax Pro Midsize Reactor -
On Sale 20%
BR110 BioPellet Reactor (up to 250 Gallons) - Reef Octopus
Reef Octopus$239.99$191.99These Revolutionary Media Reactors have a fluidizing cone bottom design to help keep the Biopellet media in suspension and evenly disperse the water upwards, without restricting the flow through the unit. These advanced reactor units also includes... -
On Sale 20%
LR-200 Chaeto Algae 8" Reactor - Reef Octopus
Reef Octopus$612.14$489.71The Reef Octopus Algae Reactor is a natural filter which utilizes macroalgae like Chaetomorpha to absorb and remove algae-producing nutrients from your aquarium's water. As macro algae grows, it will consume nutrients in the water. Once you harvest... -
On Sale 20%
Kalkwasser Mixing 5" Reactor KM-120 Small - IceCap
Icecap$311.84$249.47The IceCap Kalk Mixer is a dedicated reactor for dosing kalkwasser in a safe and controlled matter to supply equal additions of Calcium and Alkalinity to a Reef Aquarium. Kalkwasser dosing is considered one of the best all around methods to... -
On Sale 10%
8-18 Bio Mass Reactor - Bashsea
Bashsea$469.00$422.10The ultimate maintenance free biological filter. Dimensions: 14.25" x 9" 18" Base Dimensions: 9" x 14.25" Chamber Dimensions: 8" Water Input: 0.75" Air Input: 0.125" or 1/8" Drain" 1" Water Flow Rate: 300 - 400 Gallons Aquarium Size: 150 - 250... -
On Sale 20%
Kalkwasser Mixing 8" Reactor KM-200 Large - IceCap
Icecap$438.89$351.11The IceCap Kalk Mixer is a dedicated reactor for dosing kalkwasser in a safe and controlled matter to supply equal additions of Calcium and Alkalinity to a Reef Aquarium. Kalkwasser dosing is considered one of the best all around methods to... -
Natural Marine Accents Fossilized Aragonite - Lagoon (800 mL) - Pisces Aqua
Pisces Aqua$29.99Calcium carbonate derived from oolitic aragonite is biogenic (created by living organisms) and naturally re-occurring. Protect the reef by using this superior and sustainable substrate. Add the Marine Accents to any aquarium for spectacular effect. Each... -
On Sale 10%
6-24 Bio Mass Reactor - Bashsea
Bashsea$359.00$323.10The ultimate maintenance free biological filter. Dimensions: 12.25" x 7.25" 24" Base Dimensions: 7.25" x 12.25" Chamber Dimensions: 6" Water Input: 0.5" Air Input: 0.125" or 1/8" Drain" 1" Water Flow Rate: 250 - 350 Gallons Aquarium Size: 75 -... -
On Sale 20%
CR200 DC Calcium Reactor 8" W/Varios 4 Pump - Reef Octopus
Reef Octopus$729.99$583.99VarioS CR200 8 inch Calcium Reactor SKU: OCT-CALR200 Footprint: 15.2″ x 10.6″ | Body Diameter: 8″ | Height: 23″ Recirculation Pump: Reef Octopus VarioS 4 Rated for Aquariums up to 500... -
On Sale 20%
BR140 BioPellet Reactor (up to 475 Gallons) - Reef Octopus
Reef Octopus$299.99$239.99These Revolutionary Media Reactors have a fluidizing cone bottom design to help keep the Biopellet media in suspension and evenly disperse the water upwards, without restricting the flow through the unit. These advanced reactor units also includes... -
On Sale 10%
Hard Plumbed Slip Fitting Lid - Bashsea
Bashsea$35.00$31.50This option allows a customer to hard plumb a bashsea reactor using a slip fitting instead of a barb fitting. -
On Sale 10%
8-30 Bio Mass Reactor - Bashsea
Bashsea$649.00$584.10The ultimate maintenance free biological filter. Dimensions: 14.25" x 9" 30" Base Dimensions: 9" x 14.25" Chamber Dimensions: 8" Water Input: 0.75" Air Input: 0.125" or 1/8" Drain" 1" Water Flow Rate: 500 - 700 Gallons Aquarium Size: 350 - 500... -
On Sale 10%
8-24 Bio Mass Reactor - Bashsea
Bashsea$559.00$503.10The ultimate maintenance free biological filter. Dimensions: 14.25" x 9" 24" Base Dimensions: 9" x 14.25" Chamber Dimensions: 8" Water Input: 0.75" Air Input: 0.125" or 1/8" Drain" 1" Water Flow Rate: 400 - 550 Gallons Aquarium Size: 200 - 300... -
On Sale 10%
Super Silent Extreme CR618 SSE - 6" Calcium Reactor RED - Geo's Reef
Geo's Reef$819.00$737.10*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Super Silent Extreme CR618 SSE will hold 12 pounds of large grain media and is suitable for reef aquariums up to 300 gallons... -
On Sale 15%
O-Ring for Phosban 550 Reactor - Two Little Fishies
Two Little Fishies$5.99$5.09Replacement O Ring for Two Little Fishies Phosban 550 Reactor -
On Sale 20%
MiniMax Pro SMALL Reactor Replacement Sponges (4 Pack)- Innovative Marine
Innovative Marine$8.00$6.40MiniMax Pro SMALL Reactor Replacement Sponges Part Number: 7302150 4 Pieces Per Order Fits: MiniMax Pro SMALL Reactor -
On Sale 20%
Kalkwasser Mixing 6" Reactor KM-150 Medium - IceCap
Icecap$381.14$304.91The IceCap Kalk Mixer is a dedicated reactor for dosing kalkwasser in a safe and controlled matter to supply equal additions of Calcium and Alkalinity to a Reef Aquarium. Kalkwasser dosing is considered one of the best all around methods to... -
On Sale 20%
BioChurn 120R Biopellet Recirculating Reactor - Reef Octopus
Reef Octopus$415.79$332.63Rated up to: 240Gallons Holds: 900ml | Dim: 11.82″ x 7.1″ | Body Diameter: Ф5″ | Height: 20″ Feed pump: Aquatrance AQ-1200 Recirculating Churn Motion Fluidizing Biopellet Reactor The Professional... -
On Sale 15%
Set of 2 Quick Release Lever (Metric M8) Thumbscrew Replacement - Slide Loc
Slide Loc$9.99$8.49Our latest evolution is to take on the meek and humble thumbscrew... often a thorn for hobbyists... and replace it with what can only be described as a massive leap forward. The Patent Pending lever replaces the need for many nylon thumb screws... -
On Sale 20%
KS150 Nilson Kalkwasser Reactor - Reef Octopus
Reef Octopus$415.79$332.63Rated for Aquariums up to 210 Gallons Footprint: 7.68" x 7.68" | Body Diameter: 6" | Height: 26"Requires control timer and feed pump Gently mixes your calcium hydroxide Reef Octopus Kalk Stirrer (Nilsen Reactor) carries a high torque low RPM motor... -
On Sale 20%
LR-150 Chaeto Algae 6" Reactor - Reef Octopus
Reef Octopus$531.29$425.03The Reef Octopus Algae Reactor is a natural filter which utilizes macroalgae like Chaetomorpha to absorb and remove algae-producing nutrients from your aquarium's water. As macro algae grows, it will consume nutrients in the water. Once you harvest... -
On Sale 15%
NPX Bio Pellet Adaptor for Reactor 550 - Two Little Fishies
Two Little Fishies$19.99$16.99Use this kit with your Phosban 550 to run Bio Pellets effectively. Vortex generator for fluidizing NPX BioPlastics and other biopellets in Two Little Fishies Phosban reactors. -
On Sale 10%
AR618 Algae Reactor 2024 "Saltwater Blue Edition" - Geo's Reef
Geo's Reef$599.00$539.10The NEW 2024 GEO Algae Reactor is designed to filter your aquarium water by removing phosphates, nitrates, Co2 and help raise your aquarium pH without the use of artificial media. This amazing reactor incorporates two external 30 watt CRIMSON LED... -
MiniMax Pro Sump Reactor Replacement Sponges (4 Pack)- Innovative Marine
Innovative Marine$10.00MiniMax Pro Sump Reactor Replacement Sponges Part Number: 730305 4 Pieces Per Order Fits: MiniMax Pro Sump Reactor -
Natural Marine Accents Fossilized Aragonite - Ocean (800 mL) - Pisces Aqua
Pisces Aqua$29.99Calcium carbonate derived from oolitic aragonite is biogenic (created by living organisms) and naturally re-occurring. Protect the reef by using this superior and sustainable substrate. Add the Marine Accents to any aquarium for spectacular effect. Each... -
On Sale 10%
Classic CR618 GEN 3 - 6" Calcium Reactor "Saltwater Edition" w/Pump - Geo's Reef
Geo's Reef$595.00$535.50*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Classic CR618 GEN 3 will hold 12 pounds of large grain media and is suitable for reef aquariums up to 300 gallons... -
On Sale 20%
CR140 DC Calcium Reactor 5.5" W/Varios 2 Pump - Reef Octopus
Reef Octopus$649.99$519.99VarioS CR140 5.5 inch Calcium Reactor SKU: OCT-CALR140 Footprint: 12.2″ x 9.1″ | Body Diameter: 5.5″ | Height: 23″ Recirculation Pump: Reef Octopus VarioS 2 Rated for Aquariums up to 200... -
On Sale 10%
KR618 Kalkwasser Reactor GEN3 - RED - Geo's Reef
Geo's Reef$500.00$450.00*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* This is the latest model GEO Kalkwasser Reactor GEN3. We have made many changes over the years to provide a better product. We use... -
On Sale 10%
KR618 Kalkwasser Reactor GEN3 - "Saltwater Edition" - Geo's Reef
Geo's Reef$500.00$450.00*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* This is the latest model GEO Kalkwasser Reactor GEN3. We have made many changes over the years to provide a better product. We use... -
On Sale 10%
6-30 Bio Mass Reactor - Bashsea
Bashsea$419.00$377.10The ultimate maintenance free biological filter. Dimensions: 12.25" x 7.25" 30" Base Dimensions: 7.25" x 12.25" Chamber Dimensions: 6" Water Input: 0.5" Air Input: 0.125" or 1/8" Drain" 1" Water Flow Rate: 300 - 400 Gallons Aquarium Size: 125 -... -
On Sale 10%
Super Silent Extreme CR818 SSE - 8" Calcium Reactor RED - Geo's Reef
Geo's Reef$979.00$881.10*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Super Silent Extreme CR818 SSE will hold 24 pounds of large grain media and is suitable for reef aquariums up to 300-600... -
On Sale 10%
Super Silent Extreme CR618 SSE - 6" Calcium Reactor "Saltwater Edition" - Geo's Reef
Geo's Reef$819.00$737.10*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Super Silent Extreme CR618 SSE will hold 12 pounds of large grain media and is suitable for reef aquariums up to 300 gallons... -
On Sale 20%
MF 1000 Advanced Media Reactor (Up to 250 gal) - Reef Octopus
Reef Octopus$190.56$152.45Rated up to: 250gal Marine / 500gal Freshwater Dim: 4.7" x 4.7" | Body Diameter: 3.5"" | Height: 21"Great for activated carbon, Large GFO, synthetic phosphate removers and other similar medias. Advanced Hobbyist Media Filter Our professional line... -
On Sale 10%
Super Silent Extreme CR818 SSE - 8" Calcium Reactor "Saltwater Edition" - Geo's Reef
Geo's Reef$979.00$881.10*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Super Silent Extreme CR818 SSE will hold 24 pounds of large grain media and is suitable for reef aquariums up to 300-600... -
On Sale 10%
KR818 Kalkwasser Reactor GEN3 - "Saltwater Edition" - Geo's Reef
Geo's Reef$604.00$543.60*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* This is the latest model GEO Kalkwasser Reactor GEN3. We have made many changes over the years to provide a better product. We use... -
On Sale 15%
Set of 2 Quick Release Lever (Metric M5) Thumbscrew Replacement - Slide Loc
Slide Loc$9.99$8.49Our latest evolution is to take on the meek and humble thumbscrew... often a thorn for hobbyists... and replace it with what can only be described as a massive leap forward. The Patent Pending lever replaces the need for many nylon thumb screws... -
On Sale 20%
KS100 Nilson Kalkwasser Reactor - Reef Octopus
Reef Octopus$311.84$249.47Rated for Aquariums up to 130 Gallons Footprint: 5.5" x 5.5" | Body Diameter: 4" | Height: 27.6"Requires control timer and feed pump Gently mixes your calcium hydroxide Reef Octopus Kalk Stirrer (Nilsen Reactor) carries a high torque low RPM motor... -
On Sale 20%
CR220 DC Calcium Reactor 9" W/Varios 6 Pump - Reef Octopus
Reef Octopus$859.99$687.99VarioS CR220 9 inch Calcium Reactor SKU: OCT-CALR220 Footprint: 16.5″ x 11″ | Body Diameter: 9″ | Height: 23″ Recirculation Pump: Reef Octopus VarioS 6 Calcium/Alkalinity... -
On Sale 10%
NR618 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef
Geo's Reef$549.00$494.10The NR618 shown will hold roughly 15 pounds of sulfur media in the chamber and is well suited for heavy loaded aquariums up to 200 gallons. Nitrate Reducing Sulfur reactors are the most underrated methods for reducing nitrates. For those with large...