Hi All, I've currently got a profilux plus 2. I was wondering if either the Profilux 3 or 4 allows you to set different amounts of balling solutions each day. For example, is it possible to add 2x 1ml Calcium on Monday, 3x1ml Tuesday, 2x1ml Wednesday? To get the correct amount of additives dosed to my tank if I set it for 2ml each day the Calcium is low but if I increase it to 3ml per day it's too high. Any suggestions are most welcome. Thanks, Diane