名媛直播

Heeeyhey everyone. I have a question about our Chinese elm. We have this little guy for a bit more, than half a year, trying to take good care, but seems like something went wrong(?) We bought a book with the little tree together, but nothing in it about mold. I'm putting a drive link with pictures at the bottom of my post, so maybe you can open it to see what am i talking about.

It starterd maybe one or two week ago, one small area of mold on the soil. Google knowledge told us it's Myccorhiza, which beneficial to plants, and healthy soil contains it anyway. But some days ago we startet to worry again, as the tree started to loose leafes, others going brown, and the mold started expanding in worrying speed (At least for our newby eyes). There are new and green branches and leafes at the same time arround the tree, but my girlfriend fears, as a somewhat long branch lost all it's leafs. The picture name is P1188623. What you see is a bit missleading, as there are leafs behind it, originating from the same place, but the long one is empty now.
In the drive you see also pictures of the mold. on the trunk i hope it's "just" limescale, as it took some water last time.

We would be gratefull for some pro tip about this situation. Wether it's a good or bad mold, and how we should deal with it. I really hope our bonsai is not dying.

Some additional info that can help, is that this guys is kept indoor. I know it's not the best thing, but we try to give everything we can. Also we are using bonsai nutrient solution arround once a month following the instructions on the package, also the tree now spends most of it's time in our window. We live in front of a small park, so nothing blocks the sun meaning little bonsai gets arround 10 to more hours of sunlight a day. If i remember right, there are expert techniques for watering, but we are doing the "bathing" thing, when the soil dries. I'm afraid we made our fault there, and gave the soil water too frequently

Here is the link for the drive:

Thanks in advance for even the smallest idea/thought about this.
Krisztian

If you keep it indoors you are not giving everything you can. In living room conditions it will die, no doubt about it.