I would second the advice about splitting off your drain line to the refugium and regulating with a ball or gate valve (I used a ball valve because I can't find acrylic gate valves locally) but would disagree on the lights of america fixture. I have one, and it's fine, but HOT. Also, many people have had these things fry; my first one lasted 1 day (HD took it back) They're tempting because 1. you can buy them locally and 2. they're CHEAP... but on my nano fuge I have a CSL smartlite which adds basically no heat and has faithfully worked 24/7 for over a year. Much better, but costs more. For a 29 gal fuge, if its roughly the same shape as a standard 29 glass aquarium, get a 55 Wpc set-up.

Matt