01-24-2011, 02:59 PM
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Good low-light plants are Anubias, Java Fern, Java Moss, many of the Cryptocoryne species. Depending upon how "low" it is, swords and Vallisneria can work.
Substrate plants like hairgrass, being farthest from the light, generally need more intensity, and with that comes CO2 and additional nutrients. Though some have success in basically low-tech setups. But there are better choices that are more likely to work.
The type of light is all-important. I can be more specific if you indicate what fixture you have (fluorescent or incandescent) and the tank size.
As for nutrients, without some fertilizer you will have very limited success. Even Anubias and Java Fern need food to grow, and many of the essential nutrients are not likely to be present in the average aquarium without being specifically added. A good complete liquid fertilizer once a week usually suffices. I can recommend Flourish Comprehensive Supplement for the Planted Aquarium made by Seachem as one of the best. It may seem initially expensive, but you use so little once a week it lasts a long time. Another that would work in your situation is Nutrafin's Plant-Gro liquid, though it takes more and thus this becomes more expensive long-term.