Hunting for an efficient protein skimmer is excruciating. I have read reviews after reviews and during break time...even more reviews. This Fission Nano received bad reviews however, it is fairly inexpensive. Is anyone currently using the Fission Nano for their tank? If so how is it performing? I have a 20 gallon saltwater fish w/live rock tank setup and bought the Fission Nano today. Let me know if I should return it before I open "pandora's box".