Help ARC small acrylic reactor on 40 breeder 36x18

[Dwillydog]

Hello, can anyone running the ARC small acrylic reactor on a 40 breeder tell me what your outlet position is and what ph drop or co2 ppm you are getting?

 

[JayP]

I can do some measurements and calculations when I'm back home this evening, but my thought is that the ARC reactor, even at the lowest setting, will result in more of a ph drop than you'ld likely want on a 40 breeder in overflow mode. On my approx. 48X18 tank, I'm getting over a 1.0 ph drop on the 2nd to lowest setting.

 

[Dwillydog]

I can do some measurements and calculations when I'm back home this evening, but my thought is that the ARC reactor, even at the lowest setting, will result in more of a ph drop than you'ld likely want on a 40 breeder in overflow mode. On my approx. 48X18 tank, I'm getting over a 1.0 ph drop on the 2nd to lowest setting.

Per my Calculations I should only have a gas interface approx 0.6 inches wide. I’m thinking of orienting the reactor so the mounting bracket sits on the floor of my cabinet and putting the outlet as close to the apex of the tube as I can get