I am looking to set up a 10-20g frag tank (even considering a rubbermaid long container). I would like some advice on setting up an inexpensive filtration system, such as skimmer, sump, plumbing etc. I have a 48" dual T5 fixture but it prob wont be good enough so I will find a cheap replacement more than likely.

Any help on setting one up from scratch would be highly appreciated.