Hi, I bought a Blue Pine Bonsai about four months ago at a festival in college. I have had it in a well ventilated area, it takes sun about three hours a day and the climate here is VERY hot. About a month ago I went to water it and about a 200 (not exaggerating) ants came out of my bonsai; it was like an Indiana Jones movie! I continued to water it as the instructions said (Every two days 7 ounces of water) and the ants suddenly disappeared from the pot/tree. About two weeks ago I noticed that it was starting to get some brown needles (I thought that it was a normal process), but today I noticed that almost half of it is brown/yellowish. I don't know what to do and I am a beginner at this, please help!