The watering of your bonsai must never be neglected. Apply water when the soil appears dry -- never allow the soil to become completely dry. If your bonsai is receiving full sun, it may be necessary to water once a day. This schedule may vary with the size pot, type of soil and type of bonsai tree you own.
Beside this, why are the leaves falling off of my bonsai tree?
Overwatering is a common reason when the indoor Bonsai is planted in poor soil that retains too much water. A few months of overwatering will lead to root-rot, only visible in the tree losing strength and dropping its leaves. Another problem, especially when a Bonsai is placed indoors, is poor light.
Why my bonsai tree is dying?
Check on your tree when watering and do it thoroughly. With thoroughly I mean you should water your tree, wait a few minutes, and water it again, to make sure the entire soil-mass is watered. When your tree recovers, repot it in a proper soil mix. Read more about watering Bonsai trees and about repotting your bonsai.
Do bonsai trees need a lot of light?
Incandescent light is too hot and will not provide the various spectrum of light that is required to maintain your bonsai tree. Bonsai need about 5 hours of direct or indirect sunlight per day. Certain species of bonsai do best in the winter if they receive most of their light from indirect sources.