I have used a coralife skimmer for the last four years, rated for a 125, and it has done the job, not the best skimmer or most expensive, and it is hard to get adjusted, but I have it now on a total of 180 gal. system and have no problem, I did do a mod. on it though when I went to the bigger system. I also dosed vodka for the first year on my old 80 gal. but did not see any significent results from doing it so I stopped.