I don't vodka dose, but tried hydrogen peroxide. I did not find it worth while. It caused a ton of bubbles to grasp on to my rock and really didn't see much benifit. It did work as a dip for hair algae, but I found that emarlds are way better at ridding frags of algae , lol. Just put them right near them and they go nuts.
I do h2o2.. absolytly love it.. dont have before and after pics bit ut did wwork.. but you need to use it properly.. never used vodka but use brightwell products reef bio fuel.. suposedly works similar to vodka and since i used that i have noticed my skimmer needs to be cleaned everyday instead of twice a week..