I went to Lowes to purchase a fluorescent lighting unit. I just really only plan on using it for germinating sundews and perhaps growing a few plants through the winter. The tank is just 10" x 20". I ended up purchasing a twin light 2' T8 fixture. The bulbs I plan to use are 92 color rating and 5100k. The only problem is that the fixture is pretty wide so I can only fit 1 above the tank. The reason I bought it is because it was on sale for $9 compared to 16 for the twin tube T12 of which I would be able to fir 2 of. I can always return it if it is necessary to have 2 twin strips above the tank.
Any help is appreciated,