Announcement: Free shipping on all continental USA orders over $50. Some exceptions apply


SR Aquaristik Pro Cal 150 Calcium Reactor

In stock
2 in stock
SRA 5871


  • Reverse flow and CO2 recirculation
  • Auto fill bubble counter
  • Probe holder bulkhead fitting
  • Easy to remove lid
  • Precision control valve
  • Controller included
  • DC controllable recirculation pump
  • Fits in most aquarium cabinets
SR Aquaristik Pro Cal 150 Calcium Reactor
SR Aquaristik Pro Cal 150 Calcium Reactor SR Aquaristik Pro Cal 150 Calcium Reactor

The SR Aquaristik PRO Cal 150 Calcium Reactor is a great way to maintain a balanced amount of calcium and alkalinity in your reef tank. All SR Aquaristik calcium reactors are built using flame polished cell-cast acrylic cylinders and quality components.

How It Works:

A calcium reactor consists of a reactor cylinder that is filled with crushed coral skeletons made from dead hard coral. Aquarium water mixed with CO2 is pumped through the reactor. The CO2 creates carbonic acid that lowers the pH in the reactor which then dissolves the crushed coral into the aquarium water. In addition to dissolving the calcium, this process also creates almost all of the minerals and trace elements that the coral uses to grow.

Recommended Aquarium Size:

  • Light Stocked Aquarium – Rated up to 100 gallons
  • Medium Stocked Aquarium - Rated up to 90 gallons
  • Heavily Stocked Aquarium - Rated up to 75 gallons


Additional Equipment Needed:

  • Small water pump
  • CO2 regulator
  • CO2 gas bottle
  • Reactor media


Additional Equipment Recommended:

  • pH probe
  • Solenoid valve


Calcium Reactor Specifications:

  • Body Size:
  • Foot Print:
  • Total Height:
  • Inlet Size:
  • Max Feed Rate:
  • Suggested feed rate is slightly higher than a full flowing influent


SR Aquaristik PRO Cal Warranty:

  • Pump - 3 year
  • Reactor - 1 year
More Information
ManufacturerSR Aquaristik
Shipping OptionAll Shipping
Write Your Own Review
You're reviewing:SR Aquaristik Pro Cal 150 Calcium Reactor
Your Rating