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On Sale 10%
On Sale 10%6-18 Media Chamber Reactor - Bashsea
Bashsea$249.99$224.99The perfect multi-media aquarium reactor. Extra large design allows for high media volumes, while producing even flow to maximize water-media contact time. Dimensions: 8.5" x 8.5" x 19... -
Set of 2 Quick Release Lever (US Standard 1/4-20) Thumbscrew Replacement - Slide Loc
Slide Loc$9.99Our 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... -
BR110 BioPellet Reactor (up to 250 Gallons) - Reef Octopus
Reef Octopus$282.96These 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... -
Set of 2 Quick Release Lever (Metric M5) Thumbscrew Replacement - Slide Loc
Slide Loc$9.99Our 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... -
On Sale 10%
On Sale 10%6-24 Bio Mass Reactor - Bashsea
Bashsea$414.99$373.49The 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"... -
Set of 2 Quick Release Lever (Metric M8) Thumbscrew Replacement - Slide Loc
Slide Loc$9.99Our 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... -
Classic CR618 GEN 3 - 6" Calcium Reactor Blue & Black "Saltwater Edition" w/Pump - Geo's Reef
Geo's Reef$595.00*******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... -
Super Silent Extreme CR618 SSE - 6" Calcium Reactor RED - Geo's Reef
Geo's Reef$819.00*******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... -
Super Silent Extreme CR818 SSE - 8" Calcium Reactor RED - Geo's Reef
Geo's Reef$979.00*******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... -
Super Silent Extreme CR618 SSE - 6" Calcium Reactor Blue & Black "Saltwater Edition" - Geo's Reef
Geo's Reef$819.00*******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... -
AR618 Algae Reactor 2024 "Saltwater Blue Edition" - Geo's Reef
Geo's Reef$599.00The 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... -
KR618 Kalkwasser Reactor GEN3 - "Saltwater Edition" - Geo's Reef
Geo's Reef$554.00*******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... -
KR618 Kalkwasser Reactor GEN3 - RED - Geo's Reef
Geo's Reef$554.00*******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... -
AR618 Algae Reactor 2024 - RED - Geo's Reef
Geo's Reef$599.00The 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... -
Super Silent Extreme CR818 SSE - 8" Calcium Reactor "Saltwater Edition" - Geo's Reef
Geo's Reef$979.00*******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... -
Set of 2 Quick Release Lever (Metric M6) Thumbscrew Replacement - Slide Loc
Slide Loc$9.99Our 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... -
KR818 Kalkwasser Reactor GEN3 - RED - Geo's Reef
Geo's Reef$754.00*******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... -
Classic CR818 GEN 3 - 8" Calcium Reactor "Saltwater Edition" w/ Pump - Geo's Reef
Geo's Reef$775.00*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Classic CR818 GEN 3 will hold 24 pounds of large grain media and is well suited... -
KR818 Kalkwasser Reactor GEN3 - "Saltwater Edition" - Geo's Reef
Geo's Reef$754.00*******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... -
NR618 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef
Geo's Reef$595.00The 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... -
NR818 Nitrate Reducing Sulfur Reactor GEN 3 - RED - Geo's Reef
Geo's Reef$775.00The NR818 shown below will hold roughly 20 pounds of sulfur media in the chamber and is well suited for heavy loaded aquariums up to 300-600 gallons. Nitrate Reducing Sulfur reactors are the most... -
NR618 Nitrate Reducing Sulfur Reactor GEN 3 "Saltwater Blue Edition" - Geo's Reef
Geo's Reef$595.00The 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... -
Classic CR818 GEN 3 - 8" Calcium Reactor RED w/Pump - Geo's Reef
Geo's Reef$775.00*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Classic CR818 GEN 3 will hold 24 pounds of large grain media and is well suited... -
NR818 Nitrate Reducing Sulfur Reactor GEN 3 "Saltwater Blue Edition" - Geo's Reef
Geo's Reef$775.00The NR818 shown below will hold roughly 20 pounds of sulfur media in the chamber and is well suited for heavy loaded aquariums up to 300-600 gallons. Nitrate Reducing Sulfur reactors are the most... -
Classic CR618 GEN 3 - 6" Calcium Reactor Red & Black - Geo's Reef
Geo's Reef$595.00*******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... -
AR836 Algae Reactor 2026 (Commercial) - Geo's Reef
Geo's Reef$1,849.00The 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...