Thanks for the comments!
Neya - I'm using a 24" x 5.25" x 2" (2 bulb) Nova Extreme T5 fixture. It has 1x 24w Aquablue Special and 1x 24w Pure Actinic Geissmann. The Filtration is 2x Aquaclear 30 filters with filter floss which I change as needed.
It is a little grimey looking, I've been working long hours recently so haven't had time to clean it up.