The lower the light, the less water the plant uptakes. The main killer of indoor houseplants seems (at least for me) to be overwatering. If the light isn't optimal, the plant doesn't use or need as much water as one that is actively growing in good light. I would wait until the plant is light in its nursery pot (i.e. .. dry) before giving a good watering and letting it drain out completely. Let it dry out again before watering. In lower light, you may only be watering every couple of weeks..or once a month ... it's hard to say. Everyone always says sansevierias (now in the draceana genus but I'm resisting) are easy, but they give me fits for that very reason. My house has few spots with decent light and if I water them more than about once a month, they keel over.