I term the biocube skimmer as garbage primarily because I have other tanks and other skimmers and the one for the cube pales in comparison to what can be pulled from the water. I had zero luck with the one I had. lol I later put in an aquaticlife skimmer in my biocube and the results even from that cheapo skimmer were sooo much better than the biocube skimmer. The only downside is that I had to run that skimmer in the actual tank part and lost that space. But again, 14g and the water changes are eazy peezy, a few cupfuls and youre done. lol