After I got my
Ca and
Alk in balance, I set up a drip system with B-ionic and it has worked very nicely for 4 months now. Kent manufactures a IV style drip bottle in several sizes. I use the 1400ml bottle for the drip... actually, you need two of them, one for the
Ca and one for the
Alk. Don't mix the 2 parts together, you must drip them from 2 separate bottles. I fill the 1400 ml bottle with
RO water and add 210 ml of the
Ca solution. I then set it to drip once every 45 seconds or so. This will allow it to drip for one week (adding 30ml of
Ca solution per day) before it runs dry and I have to fill it again. Do the same for the
Alk component-- in a seperate 1400ml bottle add 210ml of the
Alk solution and set up a 45 second drip. I have a 72 gallon display tank with a 35 gallon sump with a pretty heavy population of corals and I've found this drip rate and
Ca/
Alk ratio to be perfect. My
Ca is pegged at 430 every time I test it and is always in balance with
Alk. I also have a 2.5 gallon bottle set-up with a once per 10 second drip of straight
RO water to replace the water that evaporates. Of course, your drip rate and
Ca/
alk concentrations will vary depending on system volume and bioload. It will take some experimenting to get it just right but once you do, life is a lot easier.