SR Aquaristik

SR Aquaristik Pro Cal 150 Calcium Reactor

Product code: 7838

Item No. CR-SR-5871

Special Price $399.98 Regular Price $549.98
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Availability: Usually Ships within 24 Hours

SKU CR-SR-5871
Quick Overview

SR Aquaristik Pro Cal 150 Calcium Reactor

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



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.

  • 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

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.


Product code: 7838
Item No. CR-SR-5871

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