i have recently started using b-ionic to control alk/cal, and would like to automate this as much as possible. i was considering getting a dual dosing pump(aquamedic) for this purpose, but have a few ?'s. the manufacturer says it runs at a fixed rate, so, how do you control how much is added? do you have to run these on a timer, or do they have one built in? also, would it be optimal to dose in smaller amounts over the coarse of the day( or night), or to just add all at once? hopefully someone out there is using this doser, and can fill me in on the details. also if you see any flaws in this plan, please LMK. i am trying to get the tank automated before several upcoming trips. i would prefer to just have someone come by and feed every couple of days, and not have to mess with anything else.