名媛直播

My wife bought me a bonsai but as I am a beginner with any kind of plant care, I have no idea where to start.

Currently I had been putting it outside for sun for four hours and then bringing back inside because that was what the lady that sold it to her told us to do. The tips of the top leaves however began to turn a light green color. I bought it a grow light as Google said it could have been from lack of light.

Now I think the roots may be exposed from over watering. Should I add more soil? What type of soil should I use if I need to?

Plus the leaves are now starting to look whiteish. Is that from overhead watering? Sorry for the many questions in one but I just want to care for this bonsai properly and ensure it lives its best life it can. I added pictures as well for visual aid. Thank you everyone in advanced!

First of all it does not sound logic that a tree that gets full natural sun suffers from lack of light. Even less logic that a grow light could solve the issue if natural sun cannot. Google is there to sell you stuff and it did a god job

Other than that, it is impossible to say anything without knowing the species. A picture helps a lot as well.