CR100 4 inch Calcium Reactor

Introducing the Reef Octopus calcium reactor series: the perfect balance of quality, design, and affordability. With three models featuring reverse flow water current for maximum water and CO2 contact time with the coral media, these reactors are equipped with PH probe holders and built-in bubble counters to monitor PH levels and CO2 drip rates. Meet your aquarium's alkalinity, calcium, and trace element needs with ease by adding a Reef Octopus calcium reactor to your system. How it works: The reactor chamber is filled with aragonite, the crushed skeleton of ancient hard corals, and aquarium water is pumped through alongside pressurized CO2. The resulting acidic environment dissolves the aragonite and releases essential minerals and trace elements used by corals for growth. Plus, this automated system requires minimal maintenance for maintaining or increasing calcium levels.

At Marine Concept Supply, all sales are final. Due to the sensitive nature of live animals and aquatic products, we do not accept returns or exchanges under any circumstances. Please review your order carefully before completing your purchase. No Cancellations.

If you have any questions or concerns about your order, please contact us at shop@marineconceptsupply.com and we’ll do our best to assist you.

We Ship UPS and will send tracking as soon as the item ships. 

Return shipping for any approved warranties are not covered and will be subtracted from the approved credit total.

Restock Fees apply to some products, due to their size or a manufacturer policy.Each product with a restock charge is marked online, in the description.

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right