Using artificial light will enable you to regulate the amount of time that your plants receive the light, which should be between 12 and 16 hours a day. In some instances it is very convenient if the plant you are growing relies on seasonal changes to induce blooming, such as with Christmas or Easter cactus. If you are growing your fern in a room with a lot of indirect, bright light you don't necessarily need the grow lights, but they sure can't hurt since the plant obviously did well under them. Boston ferns like it cool, they would be very happy to have a 60 degree room, with bright light. Since it doubtful you have a place that cool, I recommend that you keep your fern as far away from heat sources as possible, even at the sacrifice of some light.
Ferns thrive on humidity, so they appreciate a daily misting.
If there are dead or dying fronds, cut them off, so that your plants energy can go to replacing them rather that supporting them. I've always had the best luck, when I would allow the pot to soak up water in a sink for a few hours, and then not water it again until the soil is dry again.