So I was just reading the flow post and it got me wondering how you handle night time flow. Do your pumps adjust automatically like some jebao or neros? If not do you have them on a controller or timer? Do you just run the same flow/program all day 24/7? I don't own a controller at the moment so anything I'm using needs to have programmability. Obviously I'm not talking about your return pump but in tank power heads or flow pumps.