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19Apr/0812

Reef Octopus CR-70 / Calfusion 500 Setup

So I purchased a new calcium reactor for my tank the other day. Its about time too as the kalkwasser dosing was not cutting the cheese anymore. I bought a small CR70 Reef Octopus (Reef Octopus also sell an extension chamber which I am planning on getting soon to increase its capacity).

For anybody who has purchased a reef octopus product before you know that the 'documentation' provided with the product is somewhat lacking. For this reason, I decided to do a small 'how to' for setting up the Reef Octopus CR-70 / Calfusion 500 calcium reactor.

With some help from a few at MASA. I got all the info I needed on setting it up correctly.

So, here is the picture of my ca reactor setup and running;

The key is as follows;

  1. Water Outlet - This goes back to my sump. See the next picture for this.
  2. Recirculation Outlet - This goes to the recirculation Inlet.
  3. co2 injection - This is co2 from my pH controller and co2 bottle. The bubble rate is approximately 10 bubbles per minute keeping the pH inside the reactor to about 6.7
  4. Water Inlet - This is the water pickup from my sump.
  5. Recirculation Inlet - This is the inlet from the recirculation outlet

Here is a picture of the water inlet and outlet in my sump;

The key is;

  1. Water Outlet - This is adjusted to approximately 40 drips per minute.
  2. Water Inlet - this is the pickup for the ca reactor. The beautiful thing about the Reef Octopus reactors is that that do not require a dosing pump.

The reactor increased my Ca in my tank from about 360ppm to ~450ppm. Its only been in there a few days though, so I am still tuning and making sure its ok.

I hope that helps anyone else who purchases one of these.