Converting 33 gallon tank to planted

Well, I've done some research and I'm going to have upgrade my lighting at
very minimum, even to just have low light plants. I found a double bulb
strip, fluorescent and the glass cover that were reasonable priced. This
may be a dumb question, but my tank is 36" long and the strips come in 30
and 36, what would be the size to get?

In my looking around, I noticed that azgardens has a low light, easy care
plant group and it says as low as .5 watts/gallon lighting. I didn't think
that plants could grow in that low of lighting. These are the plants-
Anacharis, Rotala indica, Blood Stargrass, Japanese Fans, Dwarf Lily Plants,
Dwarf Onions, Asian Ambulia, Tall Subulata, red-spot Ozelot swords, Crypt
Walkeri, Java Ferns. Some I thought were questionable, any thoughts?

Also to get a more acceptable substrate, would it be advisable to break down
the tank and add the flourite or could I get away with carefully adding it?
Or should I add something else like laterite?

Thanks for the help.
--
JHudson
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