Fish tank plant

Bought two more plants today to add into the collection. It was bought from Far East Flora cost $2 each. They are very healthy now. In my hand, how long can they stay healthy is still unknown. So I need to experiment on this few residence first before adding some more plant.

My sun light at home my not be sufficient for the plant. Should I get the fluorescent light and CO2 supply? So into it or not?

The plant near the window is growing well. In the living room mah, may not be able to sustain....

Picture coming soon...