So, my upgraded office tank has been running skimerless for about a year and a half. I really don't have any issues but my customer's love the tank so much I want to add more coral and run a skimmer that will fit in the back chamber. I love red sea products but I'm not a huge fan of the skimmer that came with the tank. I purchased one that hangs outside the tank and never opened it...Makes me way too nervous at work. Any recommendations are appreciated! Where it is my office tank I would like to keep it affordable. I have the Red Sea 29 cube.