pH controller and buffering
I, like another member of the forum, have absurdly low kh .. testing out if the tap I get 10-20.. I guesstimate 15ppm. Not even one dKh.
Anyway adding co2 to any significant degree means that the ph ends up down in the lower 6's ...6.4 will get the drop checker close. I've decided to add baking soda and bring the dkh up to ~5.. after dosing the pH went up to 7.13 (according to my new controller) and the co2 started flowing.
I set the target to 6.7... so hopefully the co2 ppm will end up in the mid 20's...
That's my story of my ongoing progress, so now to my question;
Do those of you using a controller, plug it into the timer (so it quits at night and both the co2 and pH change) or do you leave it plugged in permanently (so the ppm co2 and pH stay the same)?
I know the plants don't need the co2 at night but the pH swing (hopefully less now my water is buffered) may not be beneficial to my shrimp and fish.
Also for those using a bubble counter with the controller, what approximate bubble count do you set so that the controller and water and reactor have proper time to work congruously?
Last edited by blawrence; 09-07-2011 at 12:56 PM.
Reason: too many typo's.. fixed em.