Light: Moderate to bright light. Keep it out of direct sun, which will scorch its leaflets. Fluorescent grow lights work well, too.
Water: Spring through fall, keep the soil moist, but not soggy. In winter, allow top 1 in (2.5 cm) of soil to dry out between waterings.
Humidity: Moderate humidity. Use a room humidifier or place pot on a tray of wet pebbles to raise the humidity around it. This fern also loves to be misted.
Temperature: Average room temperatures 60-75°F, 16-24°C spring through fall. In winter, keep it on the cool side with a minimum of 55°F/13°C.
Soil: Any good potting mix that drains well.
Fertilizer: Feed monthly spring through fall with a balanced liquid fertilizer diluted by half.
Propagation: Division. In spring and summer, divide rhizomes, each with roots and stems attached. Pot in moist potting mix. The rhizomes hold a lot of water, so be careful not to overwater or they'll rot.