Has anyone dosed vodka, sugar, or vinegar, for an extended period of time? If so what effects did you notice? I read a pretty long forum http://www.kipsreef.com/forum/showthread.php?t=318 last night on dosing these three and was wondering if anyone in the club had any firsthand experience on them? I've been using vinegar in my kalk for 2 weeks now and have noticed that a few issues I've had have gone away. I can not tell by the change in skimmate though for I changed to my new DIY skimmer during the proccess. It is working like my otherone could not. I have noticed the dark red algae on my rocks disappearing fast and being replaced with purple coraline algae. I've also lost much of the hair algae I've had in my overflow. My alk and calcium have seemed to be getting sucked up at a much higher rate also. The only bad thing I've noticed is a brown bacterial mat that has grown on my sand bed. This could be from to much to fast.