My bonsai is sick!

[TeoAv]

Hello! Some days ago I have spotted a bonsai tree at a store, on discount and I decided to buy it. This is my first bonsai.

When I buyed it, the bonsai only had 2 leafs that looked a bit yellowing and the rest were fine. I got home, reported it with bonsai soil from the same store and watered it with a tiny bit of bonsai fertilizer in the water.

From then the bonsai leaves started to fall and become brown and now I think it looks very sick. Plant care app says it is a Chinese banyan and it has underwatering symptoms. Also I noticed that the new leafs have a black top.

Please help me and guide me on what to do!

 

[potatofarmer]

not much you can do aside from trying to return it.

 

[namnhi]

Scape the bark to see if it still has sap... the white milky substance. If it does, I would just leave it outside in a warm spot and water it thoroughly. If it still has white sap it should make it.