yes, i have already searched for them all over this site and for the most part im still lacking knowledge. I plan to get my skimmer tomarow and i am not sure what kind i should get. So far (from what i can tell) my best bet would be the AquaC Remora Protein Skimmer. Does anyone have this one? hows it working for you? i have a 50 gallon tank so i think this would work. let me know what u think...please :)