okay so i am trying to figure out how this works. this guy has ane overflow box with out a skimmer. what i dont get is his siphon tube in the tank is lower than in his overflow box. how is this possible. this is what i need for my 10gal sump that is sitting right next to my 10gal display. here is the articale. i couldn't figure it out.
http://www.cichlid-forum.com/articles/diy_skimmerless_overflow.php
http://www.cichlid-forum.com/articles/diy_skimmerless_overflow.php
