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Calcium Reactors are an affordable efficient way to maintain your calcium levels in a reef tank. After setting up your new calcium reactor, the maintenance is very limited. When your reef tank begins to get fully stocked with corals etc. it is almost a necessity to have a calcium reactor to keep levels consistent.

We offer some of the highest quality calcium reactors on the market, such as Korallin calcium reactors (the highest selling reactor on the net). We also carry all the accessories including regulators and CO2 tanks. We are happy to also introduce the new AquaC Rx-1 Calcium Reactor.

AquaC RX-1 Calcium Reactors Vertex Calcium Reactors
The RX-1 calcium reactor represents the pinnacle in reactor technology available today. We've combined all the features an advanced reef hobbyist is looking for into a compact package that is easy to use and maintain.
Vertex is breaking into the industry with high quality affordable products for beginner to experienced aquarists. This new calcium reactor incoporates large media containers and magnesium dosing system.
GEO Calcium Reactors Knop Calcium Reactors
All of the machining is performed in house to ensure proper fit before assembly. Every edge is beveled, every joint bonded into a socket, every cut hand polished.
These are the properties of a quality product, and this is what separates the Geo's Reef product line from other manufacturers.
The KNOP Calcium Reactor, also known as "The Original One", is a well established product and is the number one selling calcium reactor in Germany for 4 years.
AquaCare Calcium Reactors Calcium Reactor Complete Packages
78 to 82% less free CO2 in the outlet: AquaCare has developed a neutralization chamber that raises the pH of the outlet to 7,0 (unit 1) or 7,3 (units 2-5). This neutralization stage lowers the growth of algae extremely.
We put all the best equipment together for a ready to go calcium reactor set-up. Not sure what to buy, these packages are for you.
ETSS Calcium Reactors Korallen Zucht Calcium Reactors
ETSS is an industry leader in quality aquarium products. Their Calcium reactors are high quality cast acrylic extremely efficient reactors.
Korallen Zucht does it again with its world class calcium reactor. We recommend this reactor for any serious reef keeper.
Korallin Calcium/Kalk Reactors Precision Marine Calcium Reactors
The already best-selling Kalkreaktor (Calcium Reactor) in Germany has become even better. It completely replaces Kalkwasser, 1 or 2-part Calcium/Buffer powder & liquid dosing.
Precision Marine Reverse Flow Calcium Reactors are at the top of their game. Low CO2 consumption by recycling gas into the pump intake for efficient use. Entirely hard plumbed. Top-Quality and High-Performance is the name of the game at Precision Marine Systems.
Replacement Eheim Pump
Replacement Pumps for our top of the line calcium reactors.

Korallin C1502 Calcium Reactor with Eheim Pump AquaC RX-1 Calcium Reactor up to 400 gallons Korallin Calcium Reactor 1502 Package 2
Our Price: $386.98
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Our Price: $429.99
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Our Price: $599.95
Korallin C1502 Calcium Reactor with Eheim Pump AquaC RX-1 Calcium Reactor up to 400 gallons Korallin Calcium Reactors