Calcium Reators?

[Raven63630]

I'm looking at getting a calcium reactor and was wondering if anyone has any experience with the Korallin Calcium Reactor 1502?
Also would like to get input on any other comparable reactors.

 

[emoore]

I have a GEO 624 and it is great. I set it up 3 months ago and haven't had to adjust it since.

 

[nxma14]

I use a Geo and it works well with a aqua controller and ph probe. I would suggest getting the largest calcium media you can find. I used ARM media before and it turned into mush and jammed up the reactor.