I have a sick bonsai tree and need help.

We’re out of our depth when it comes to discussing bonsai, so we can offer just the basics. Watering depends very much on the type of bonsai, but as a general rule, water once a day for a well-drained pot. The appearance of liverwort on the soil means either poor drainage or overwatering. Dry soil and brown moss are signs of underwatering. Fertilizer should be used sparingly. Check the wiring on the tree and remove it before it starts biting into the bark. We suggest checking the Internet for more information. There should be expert sources out there to help you.