I'm setting up a new cal reactor. I'm getting about 20dkh out of the reactor and the tank sometimes goes over 12dkh. I am running the reactor all the time but have heard diffrent ideas about putting it on a timer. Should I choke the reactor down untill the tank stays at 11dkh or should I put the reactor on a timer with about 30dkh? Ive heard of people doing both, any ideas?