Planted Tank Guru
Join Date: Jun 2004
Location: Baton Rouge, LA
Welcome to the hobby, April!
I also have a 46g bowfront, and used to run "low-tech" like you're doing.
Without CO2 and good fertilization, I'd recommend limiting light to less than one watt per gallon.
My tank has two removable glass panels, instead of a fitted hood. I used 2x 30" fixtures, each of which contains a 24" 17W T8 fluorescent light.
As for plants, consider hornwort and water wisteria too.