bright, indirect lighting; avoid direct sunlight. It's more tolerant of too little light than too much. If the plant begins to stretch toward the light, or the green color of its leaves fades, then the light is too low. Water: Change the water every one to two weeks. Use bottled spring water for fast growth and a beautiful deep green color; tap water contains chemicals and additives that can sicken or even kill the plant. For plants raised in soil, keep the soil evenly moist.