My plans are to have a riccia-covered stone in the middle-front with a small amazon sword-looking plant in the right corner, let the moneywort grow around the filter, have two other plants that will grow to the top of the aquarium, and (once I buy some decent lighting and install my diy co2) get a carpet of glosso for it. The main point of focus would be the riccia-covered round stone.
As far as fauna goes, I'm thinking either RCS or a small school of rasboras or tetras. Or maybe even both. But probably one or the other.
And as for my substrate, it's sand straight from the Mississippi river!
It's actually very nutrient-rich, which is very helpful in planted tanks. I also have it in my 10g, which also has a tank journal (but it's also very new [though not quite as new as this]). I bought two peppered cories for the 10g earlier today, actually, and they love rooting around in this stuff. IMO, I think it looks better than gravel and planting is easier.
EDIT: And as far as lighting goes, I've done the math and a 60w bulb over 2.5 gallons gets 24w/g
Although I don't think that would be accurate...