Grown indoors the Schefflera Arboricola can be kept to a manageable size of 4 - 8ft tall.
Basic light condition of bright without direct sunlight is best suited, although lower lighting conditions only really affects it's growth rate rather than causing any harm.
Grows well in average room temperatures between 60 - 75 °F (15 - 24°C) but no lower than 55F (13C) or higher than 75°F (24°C). Avoid sudden temperature drops and cold drafts.
The best advice is to water once the top soil becomes dry. Over-watering is more of a problem than lack of water.