jd, Wall_Tank and kennv431 all posted legitimate responses. I asked about this in January, and for the most part, folks shy away from this (around here), except in extreme circumstances. I think that no matter what you are dosing with, any additional metered additives going into the tank introduce a higher likelihood of knocking the tank out of balance. While I have no personal experience with vodka dosing (of aquariums
), I would recommend that before you make any sort of decision, you have to determine if you will be able to maintain the potential additional upkeep and monitoring. If not, then don't do it, but if so, knock yourself out and let us all know how it works for you.