So apparently my other thread died, probably due to the title, so I figured I'd start one just for my problem. So if you know my situation, please skip this entire next paragraph.
So my situation is that I have a Seaclear System II tank. It has a built in
wet/dry filter.
The back Looks just like that, except I have some cheato instead of the Bio balls. A while ago I bought this
sump/fuge set up

My original plan was to put it higher on a shelf and pump water up to it and have gravity bring it back down. But now my parents would prefer me to have the
sump below my tank.
So my question is:: is there any way to move water from my tank DOWN to the sump, without drilling. At the moment, I can't put an overflow on the back, unless there it one that can fit over the side over a 5 inch lip.
Thanks a bunch! Sorry I am such a pest, but that
sump has been in my room for half a year already and I want to get it running!
Anything that is unclear, please let me know.
-Mark