so I'm fairly new to bonsai and I only have two trees, so my first bonsai was from a grocery store and it was pretty healthy it's a fukien tea, and it's been doing pretty well, but recently it started dropping leaves, and has been growing slower, I'm guessing it's from over watering but I'm not sure I'll post some pictures too, I water whenever the top of the soil is dry and it has very good drainage.