Taking care of Bonsai Trees is a bit harder than taking care of other trees and plants but it's not as hard as it's made out to be to take care of Bonsai Trees.
Bonsai Trees do best when grown indoors and are usually planted in small pots and you need to take care to not over water the Bonsai Tree but make sure that they get enough water and sunlight as well.
It's best to put Bonsai Trees near a window that gets a lot of sunlight because Bonsai Trees require a good amount of sunlight to grow properly and stay healthy.
You can also use some grow lights to help keep some artificial light on the Bonsai Trees when you don't have enough sunlight coming in during parts of the year.