Hey guys I have recently been gifted and asked to babysit a juniper bonsai tree. I'm not too sure how old it is but I was told just to spray with the water bottle once a day and give no more than two hours of sunlight well branches started to break off and brown a little so I switched up the watering and sunlight deal to watering the plant making sure the soil was wet all the way through and not just the top layer then spraying it a little. Lighting I have been putting it out in my back yard on the table to where it can get in direct sun light for a few hours then I bring it back in and put it at the window.
Now my problem is the tree is turning a light green possibly a yellow color. Branches are beginning to fall off as well. I live in Mississippi and it is fall soon it'll be winter. The bigger one isn't my tree and I do not want to kill someone else's tree so can anyone help me out here? Also I've just been gifted a smaller one so the advice would help for the newer smaller bonsai as well.
I love my trees just have very small knowledge on the up keep of them both.
Please help guys!