每日吃瓜

I got a bonsai tree from a website and the tree got here but there are yellowish-brown leafs in it so what should I do?

Hello and welcome
A bit more info is needed: which species, where did the tree come from ( did it travel around the world to your place) , a picture,…..

You will have to supply a bit more information, like what country are you in what species it is where is it being kept how are you watering etc.