I can't tell you much about this skimmer the ad does'nt, but it does require parts you don't seem to have. How effective it will be I don't know, but it can hang on the back of your tank. Also has nothing to do with an r/o unit, so don't worry about that. Maybe someone with personal experience with this model will chim in. Also, I had the exact skimmer you have in your tank. After adjusting countless times and pulling my hair out, I concluded the best location for this skimmer would be the nearest trash can. Sorry! I finally broke down after years of dealing with the cheap and poorly designed models. I ended up with an aqua c remora, which has been super easy to maintain, not to mention effective. A skimmer is a valuable piece of equipment, but the research in the choosing of the right one is important. I can't believe how many piles of S are still being sold in stores. Hopefully you can get the one you have complete and running. Good luck!