Daytonabonsai

cute tree , but in your heat range it should look a bit fuller by now . I agree with attila about putting it in a bigger pot with well drained soil for the year to reintroduce vigor. I would gently comb out the circling roots , but I wouldnt cut any this late in the year in your zone. once it starts to grow better , start fertilizing it more . I like the hollow up top . really adds character . I like to keep the hollows free draining , because if it gets plugged up from the bottom youll have standing water and a lot more rot problems than you have currently . ive seen wood hardener used on the inside of a hollow trunk with good results . It plasticizes the wood stoping it from weakening into mush around that drain area possibly ruining the nebari area . Id let it calous over around the edges for a truly ancient look , but id let the bottom have a small opening for dranage and make the top area a great focal point that is currently is . great buy !