I am a complete newbie to bonsai and black pine trees. I started a little black pine from a starter kit my wife bought me. This is what it looks like after a few months. Over the last few weeks some of the needles have started turning brown, and even looks like it could be dying, but then I have no idea. It is potted in miracle-gro cactus/palm soil. I know shame on me, but I really don't know better at this point. Please let me know what you think. I keep the soil relatively damp and keep a grow light full florescent on it daily. Thanks again.