I am new to bonsai and recently (23rd of April) bought a bonsai in Florida. I live south of Pittsburgh, PA and was told to keep it inside only in the winters in indirect sunlight. I read on another site to water it only when the topsoil gets dry every other day or so, and I've been doing that. I also read to take out any rocks that were in it so I did it, even though mine werent glued in. Currently there is one rock that I can't get out and its rather large, but most of the surface area of the dirt is showing.
It was losing a few leaves every day or two and I thought nothing of it because it seemed like a normal process of just shedding them and growing new leaves, but today when I checked it, it had lost a good bit of leaves, leaving most of 2-3 branches bare. It has been inside and out in the time that I have had it due to bad storms, but I can't really keep it inside and I'll need to find a clever way to do it when its winter due to cats. However there are smokers in the house that smoke on the porch...If that has anything to do with it seeming to die off then I'll need to find a new place.
I found the watering section in bonsai care and since I have never done it, and figured it would be my best bet since the soil was dry, I submerged the pot in water until the bubbles went away about 30 minutes ago. The pot DOES have a drain hole in the bottom of it, whether this is good or bad I'm not completely sure. I also forgot the species of tree it is, but I have a picture.