Recommendations on Ca Reactor

[Nanz]

Is the Calcium Reactor 500 by Coralife a good reactor? I need one for a 75gal tank, 100gal system.

If you would recommend another reactor or method please feel free :)

[Shooter7]

GEO 612. Great construction and function from as far as I can tell in the time I've had mine (short) and the experiences that have been passed on to me by others (many, many others).

[theatrus]

Geo is top notch. Korralin is decent as well. If you're trying to save some cash, buy used.