My Reef Creations Nilsen Reactor

Sign up for price alert

Availability: See Individual Item

Product Name Price Qty
My Reef Creations Small Nilsen Reactor
(Factory Direct - Usually Ships Out Within 2-3 Days)
My Reef Creations Standard Nilsen Reactor
(Factory Direct - Usually Ships Out Within 2-3 Days)
My Reef Creations Large Nilsen Kalk Reactor
(Factory Direct - Usually Ships Out Within 2-3 Days)
See Individual Item

MRC Nilsen Reactor

Double click on above image to view full picture

Zoom Out
Zoom In

More Views

  • MRC Nilsen Reactor
  • MRC Nilsen Controller Close Up


MRC Nilsen Reactors

These units no longer have the touch screen. We will update the listing with new photos when we receive them from My Reef Creations. 

The new touchpad programmable interface allows you to set timing intervals to control when the mixing occurs and for the length of the mix. This allows you to get the right amount of kalkwasser mixed for your system. The interface is capable of programming to the second, so you have an infinite amount of different timing options!

The new Nilsen Reactors also feature an heavy-duty external pump; no more wimpy pumps! This allows for the most powerful and reliable mixing performance for years to come. It also makes for easy cleaning and maintenance. The water resistant plug ensures worry free operation.

Small Nilsen:

  • 4 1/2x18 Chamber
  • BL-10 pump

Medium Nilsen:

  • 6x18 Chamber
  • BL-10 pump

Large Nilsen:

  • 8x18 Chamber
  • BL-20 pump

How does a Nilsen Reactor work? 
Nilson reactors are specially designed reactors meant to add “kalkwasser” (a saturated calcium solution) to your tank water. Kalkwasser, also called lime water, has a pH of near 12, so it, in itself, is a caustic substance to our aquarium inhabitants. However, when administered slowly, it will maintain clacium at appropriate levels, and will also help maintain pH at proper levels. Kalkwasser mix is a cheap substance to purchase, and allows calcium addition at a comparaitively lower cost. The counterpoint to this, is that administration has awlays been a tricky matter, always requiring either a labor intensive daily solution administered by “do it yousrelf” adaptations, or “Kalk stirrers”, using old laboratory technologies to mix a chamber.

Why should you buy a MRC Nilsen reactor? Simply put, MRC has brought the Nilsen (kalk) reactor to the 21st Century. Other kalk reactors use cheap parts or materials, or rely on additional equipment to mix the solution. MRC has brought quality and completion to its design. Using a powerful, external pump, the mixing is accomplished in a much more reliable way. These pumps are far more reliable and durable than the pumps used in other kalk mixers. Furthermore, any maintenance or service will be notably easier on this pump.

Quick Overview

The MRC Nilsen Reactor is available in 3 standard sizes. Click the details tab for more information.

Additional Information