Help with picking a Calcium Reactor

lpkenneys · 07/12/2008, 05:59 AM

Hello, I have a 120 gal, mixed reef tank and am interested in getting a Calcium Reactor for because I seem to be finally doing well with my sps corals. I have been checking out quite a few and I like the GEO 612 or 618 if anyone has had experience with these unit's or can make recommendations it would be greatly appreciated. Thanks..

Wrench · 07/12/2008, 07:42 AM

There's really not much to them, most reactors are the same. I have a GEO-624 that I bought used from a guy in my club. Had I bought it new I would have been really ticked off after realizing that it's nothing more than some Home Depot PVC fittings and an acrylic tube. There are some companies that claim to have a more effiecient reactor (Korallin, Schuran) but I can't see there being much of a difference. What I'm trying to say is that it's a simple design that doesn't vary much from brand-to-brand. If I were to buy a new reactor I would pick up an Octopus which seems to be a 1/2 price version of the GEO.

turtleman9100 · 07/12/2008, 09:25 AM

I am going to be honest. I picked up a corallife for my soon to be frag tank. I used a Geo on my main tank. The soon to be frag tank has been up and running for about a month now. I checkedd the calcium level and alk on that tank this morning and the coralife has maintained the 430 calcium and 11 alk for a complete month now. When I initially set the tank up, I set calcium at 400. I bought the 250 version for 80$ used. No leaks and has ran consistant. I would be willing to try the 500 version. You can always sell it but I am witness, they do work.

Paulairduck · 07/12/2008, 03:37 PM

Had a K2r and a Koralin calcium reactor, not very consistent, with drip rate, Bad design. Switched over to GEO no issues, set it and foget about it!!

07/12/2008, 05:59 AM	#1
lpkenneys Premium Member Join Date: Dec 2007 Location: Mechanicsburg,Pennsylvania Posts: 307	Help with picking a Calcium Reactor Hello, I have a 120 gal, mixed reef tank and am interested in getting a Calcium Reactor for because I seem to be finally doing well with my sps corals. I have been checking out quite a few and I like the GEO 612 or 618 if anyone has had experience with these unit's or can make recommendations it would be greatly appreciated. Thanks..

07/12/2008, 09:25 AM	#3
turtleman9100 Registered Member Join Date: Feb 2008 Location: Memphis, Tennessee Posts: 570	I am going to be honest. I picked up a corallife for my soon to be frag tank. I used a Geo on my main tank. The soon to be frag tank has been up and running for about a month now. I checkedd the calcium level and alk on that tank this morning and the coralife has maintained the 430 calcium and 11 alk for a complete month now. When I initially set the tank up, I set calcium at 400. I bought the 250 version for 80$ used. No leaks and has ran consistant. I would be willing to try the 500 version. You can always sell it but I am witness, they do work. __________________ Let's make better mistakes tomorrow....................... Current Tank Info: 150 gallon tall mixed reef, 1/2 HP Chiller, Bubble King Mini 180, GEO 818cr

07/12/2008, 07:42 AM	#2
Wrench Registered Member Join Date: Nov 2006 Location: Maryland Posts: 2,004	There's really not much to them, most reactors are the same. I have a GEO-624 that I bought used from a guy in my club. Had I bought it new I would have been really ticked off after realizing that it's nothing more than some Home Depot PVC fittings and an acrylic tube. There are some companies that claim to have a more effiecient reactor (Korallin, Schuran) but I can't see there being much of a difference. What I'm trying to say is that it's a simple design that doesn't vary much from brand-to-brand. If I were to buy a new reactor I would pick up an Octopus which seems to be a 1/2 price version of the GEO.

07/12/2008, 03:37 PM	#4
Paulairduck I LOVE FREE FRAGS!!! Join Date: Nov 2005 Location: Chino Hills Posts: 2,909	Had a K2r and a Koralin calcium reactor, not very consistent, with drip rate, Bad design. Switched over to GEO no issues, set it and foget about it!!