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Leopardshark
09/07/2017, 02:41 PM
Hello all,
Iīm deciding between a GEO 618 calcium reactor or the Reef Octopus 200.

At least in paper both units look very good, even do ROīs pump is DC and I really like the one that came with my RO Elite 200-int skimmer.

A friend of mine told me the RO is harder to calibrate, but thatīs from what heīs heard.

Which one would you get? comments? experiences?

Thanks in advance.

Marco

ReefCowboy
09/07/2017, 09:04 PM
I dont run a CaRX, but I learned when I was considering one that Geo is far superior than most out there. That is a good quality piece of equipment.

LQT
09/07/2017, 10:05 PM
With a calcium reactor, I wouldn't fuss with expensive to replace DC pumps. Go with a reliable pump that has a readily available replacement if it becomes necessary. These pumps run in a harsh environment and take a beating so reliability is key. I bought an older GEO 612 that has a rock solid reliable Eheim pump. The newer GEOs come with Sicce pumps.

IMO, part of the appeal of GEO calcium reactors are solid construction and simple yet efficient and effective design. It just plain works and works well. In addition, the customer service and support from Serdar (and George before that) is top notch. There's a reason so many experienced stickheads run GEO calcium reactors.

royvoss
09/08/2017, 05:44 AM
go geo, great unit, they are easy to get hold of if there is a problem and the carry replacement parts

Leopardshark
09/08/2017, 09:40 AM
Thanks for your comments. I keep hearing more and more good comments about Geoīs reactors!
And LQT, I think youīre correct in regards of prefering a simple but reliable pump, as opposed to a DC which is much expensier.
Regards

d2mini
09/08/2017, 12:22 PM
I sent an email to Geo and had a response within minutes.
Take that FWIW.

ca1ore
09/08/2017, 12:25 PM
I prefer the MTC ProCal, having run it for almost 20 years, as a step above the rest (well, most of them); though I appreciate you didn't include it in your choices :lol: Consider it an unsolicited opinion. Also keep in mind that circulating water though a canister full of media presents considerable back pressure, something the venerable AC pumps have done well for decades.

biecacka
09/11/2017, 01:39 PM
I sent an email to Geo and had a response within minutes.
Take that FWIW.

This!!!
It is really a one man made in America product, I have been to the shop a number of times as he built my tank, media reactors, CaRx and my old becket skimmer


Corey

Leopardshark
09/11/2017, 03:07 PM
Thanks all for comments. Problem now is Geos reactor are out of stock for weeks!
If they are not in stock during this week I will order the Reef Octopus.

d2mini
09/11/2017, 03:30 PM
Thanks all for comments. Problem now is Geos reactor are out of stock for weeks!
If they are not in stock during this week I will order the Reef Octopus.

Which model? Their website doesn't seem to say out of stock.

LQT
09/11/2017, 03:43 PM
Try calling Aquacave... according to their website, the GEO 618 seems to be in stock.

http://www.aquacave.com/geo-618-calcium-reactor.html?fee=1&fep=926&gclid=EAIaIQobChMIi6urloye1gIVk7rACh2TkAjeEAQYASABEgJ72PD_BwE

eshark
09/11/2017, 08:00 PM
GEO. Hands down.

I ran one for years. Well built, easy to use, effective.

slief
09/12/2017, 08:09 AM
Geo! I've had my running for years too. They make very high-quality calcium reactors at very good prices! They are worth the wait!

superdragon
09/12/2017, 08:20 AM
Call Geo's reef. I emailed before MACRA and was told 2 weeks but when I called he built one for me and shipped in 5 days. Support is good and emails returned within 24 hours or less. He also answers the phone occasionally.
I'm a RO fan but the Geo is built to take a beating.

m3lacoste
09/12/2017, 08:50 AM
I recommend GEO. Outstanding service.

Optionman
09/12/2017, 09:22 AM
i've run a RO 2 stage CArx for 15 months now without any issues. i control the Ph within the reactor with an apex Ph probe. basically set it and forget it. good luck with whatever CArx you go with.

cpllongjk
09/12/2017, 11:07 AM
Geo! I've had my running for years too. They make very high-quality calcium reactors at very good prices! They are worth the wait!

I agree with all the comments about GEO. They are a great company that produces high quality products. If you need help they are quick to reply as well.

Haksar
09/12/2017, 12:37 PM
Geo 618 with masterflex pump is set and forget .

Leopardshark
09/12/2017, 06:37 PM
Thank you very much for your input.
Aquacave indeed has supposed to have them in stock, I will contact them tomorrow.
Definitely going with Geo.

Leopardshark
09/12/2017, 06:38 PM
Geo 618 with masterflex pump is set and forget .
Did you order the reactor with the masterflex pump?

d2mini
09/12/2017, 07:14 PM
Thank you very much for your input.
Aquacave indeed has supposed to have them in stock, I will contact them tomorrow.
Definitely going with Geo.

I ordered a 612 yesterday, direct from Geo. It's shipping Thursday.

Leopardshark
09/13/2017, 10:58 AM
Try calling Aquacave... according to their website, the GEO 618 seems to be in stock.

http://www.aquacave.com/geo-618-calcium-reactor.html?fee=1&fep=926&gclid=EAIaIQobChMIi6urloye1gIVk7rACh2TkAjeEAQYASABEgJ72PD_BwE

Hey, I just tried to call them and they didnīt answer the phone, have you ever bought from them? are they a reputable company?
regards

Nevermind, I just contacted them and they have a 618 in stock! regards

LQT
09/13/2017, 12:01 PM
Woohoo... Nice! :D

Haksar
09/13/2017, 01:31 PM
Did you order the reactor with the masterflex pump?

Masterflex through eBay got a good deal and GEO directly

Leopardshark
09/13/2017, 01:51 PM
Thanks.
Even the guy in Aquacave recommended me the GEO above RO and Vertex.

LQT
09/13/2017, 02:08 PM
As I mentioned before, the beauty of the GEO is the simple and efficient design coupled with top notch, quality construction. I regard manufacturers like MTC and Lifereef to be in the vein of high quality yet simple and efficient products as well. A lot of other manufacturers on the other hand try too hard to reinvent the wheel. They add unnecessary bells and whistles to that end up unreliable (DC pumps in calcium reactors) and leak (as seen in the spaghetti junction of tubes and fittings).

At the end of the day, you've made a great choice to go with GEO. No go hop onto eBay and find yourself a continuous duty, variable speed peristaltic pump like a Masterflex or a Watson Marlow and you'll have the ultimate CaRx set up! :D