GEO 618 Calcium Reactor

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GEO 618 Calcium Reactor

Product code: 926
CR-GEO-618

Availability: BACK-ORDER

$415.95
Reward Points Policy 4,159 AQUAPOINTS
OR

GEO 618 Calcium ReactorAll cell cast acrylic construction

* Clear lid to view proper O-ring seal
* Key hole slot for lid removal
* Micro ball valve effluent control...


GEO 618 Calcium Reactor.

**** PRODUCT MANUAL ****

All cell cast acrylic construction

* Clear lid to view proper O-ring seal
* Key hole slot for lid removal
* Micro ball valve effluent control
* Eheim 1048 pump, bolted to base plate
* pH probe port in lid
* pH probe adapter included
* Auto fill bubble counter
* 10 x 9 foot print, 24" overall height
* Holds 12 pounds of media, we recommend large grain schuran type
* For reef aquariums up to 350 gallons

The world famous GEO calcium reactor!

Our reactors are fabricated using only the finest cast acrylic materials and high quality fittings. Designed with the user in mind, we feel these are by far the easiest reactors on the market to install, operate and maintain. Bottom up flow of water captures free CO2 and draws it back into the pump. This means less gas in the reactor and less gas in the effluent. There is no need for a second single pass chamber with our design.

These reactors include all of the fittings and tube required for normal installation. The user will need to supply the media, CO2 equipment and feed pump.

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  1. Excellent - Best Calcium Reactor on the market Review by Mitch
    Product Rating:

    I have used this GEO Calcium Reactor for 4 years. I have been very pleased with the quality of it. The construction is excellent. Very positive purchase. (Posted on 7/9/2014)

  2. OK Reactor for the Price Review by David

    This reactor has a great following. The parts are all made from good materials and easy to setup. I like the key hole design for the lid which makes it easy to take off.

    The main issue I have with this reactor is that the Eheim pump that drives the reverse H2O flow action and moves the CO2 thru the media is way under powered for this to be rated for a 400 gallon system. The CA reactor I had previously was the Knop S IV which had a better channel design and next size up Eheim pump which delivered twice the amount of water flow, and this unit was able to barely keep up with a fully stocked SPS 200 gallon system. (Posted on 8/19/2011)


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415.95 In stock
GEO 618 Calcium Reactor 4 out of 1 5 based on 2 ratings. 2 user reviews.
Excellent - Best Calcium Reactor on the market Review by Mitch
Product Rating:
I have used this GEO Calcium Reactor for 4 years. I have been very pleased with the quality of it. The construction is excellent. Very positive purchase. (Posted on 7/9/2014)
OK Reactor for the Price Review by David
This reactor has a great following. The parts are all made from good materials and easy to setup. I like the key hole design for the lid which makes it easy to take off.

The main issue I have with this reactor is that the Eheim pump that drives the reverse H2O flow action and moves the CO2 thru the media is way under powered for this to be rated for a 400 gallon system. The CA reactor I had previously was the Knop S IV which had a better channel design and next size up Eheim pump which delivered twice the amount of water flow, and this unit was able to barely keep up with a fully stocked SPS 200 gallon system.
(Posted on 8/19/2011)
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