geo 612 reactors

[reef fish]

i have a 612 geo calcim reactor avd it on a 150 gallon 60 x 24 x24 tank with only about 25 frags and cant get the ph contraler lower then 6.9 traying to get to 6.5-6.4

 

[Poseidon]

You are trying to set the effluent pH to 6.4 or 6.5? You could increase the amount of CO2 you add to the reactor to do that...

 

[reef fish]

I did

 

[Poseidon]

What are you using to control the CO2? Bubble counter or solenoid?

I was able to maintain 6.5 in a reactor that held 50 pounds of media, it should be no problem at all for you.