GEO Calcium Reactor

nodough · Jul 31, 2008

I have a Geo 618 calcium reactor that I can't seem to get dailed in. My BPM is around 90-100, with effluent drip rate at 50mil per minute. My effluent alk test at 13 and ph at 7.5. I cannot keep my ph stable in the tank, i am adding buffer every other day, yesterday it got down to 7.91. I have never had a problem with low alk it always on the high side at about 11, lowest ever been was 9. I am running the reactor with a Pinpoint controller set at 7.2 high and 6.8 low side. It kicks on and off like clockwork when these parameters are met. Any help would be appreicated.

kimo4848 · Aug 2, 2008

Geo

I have a GEO and had troubles at first also. I set my bubble count to 10 per min and set the drip at 40 per min. My ph is stable now and cal is steady at 450 to 500 now. I run kalk now and then to help with the ph. I hope this helps. Once it's set you will really like it.
Ken

Maxx · Aug 3, 2008

How big is your system? What do you have in it so far. Just from reading it seems that you are using a fair amount of CO2 which will cause your system to have a depressed pH. I'm using a Geo 612 and running 30 bpm and an effluent rate of about 23.6 ml/min. System is 170 gallons total with clams and SPS. PH is steady at 8.1-2, Ca steady at 420, DKh at 12.0

Nick

plack · Aug 4, 2008

Good Luck

http://reef.diesyst.com/reactor/reactor.html

nodough · Aug 4, 2008

Geo Reactor

I have about 25 SPS in tank with 125lbs LR, it's a 180AGA with a 40 gallon sump/refugium. I set the reactor to what the directions said now I will turn down BPM's to about 40 and re-test starting from there. Thanks