For about 10 years now I have what I think is a Japanese juniper planted in a hollowed out feather stone (lava rock). It has done ok but now I want to make it into a Bonsai. The first problem was getting it out of the rock as it adhered to to it so well and become root bound. Next I have this large tap root that I think should be cut off as I have seen that done on Youtube. I think that would be safe to do on a juniper. I also have these above surface roots, should I cut them off, plant the tree a little deeper or maybe try to loosen them enough to pull them down. It was planted kind of like a root over rock style before. These roots are also not going in good directions. Last I have a split trunk or a y shaped trunk. I would like to get some input on what to do with this. I could jin one side or try to pull the two branches closer together and cover some of the trunk by pulling a couple of branches forward. I temporarily re potted it in a 2 gallon pot until I can make some decisions.