His lagan is Pisces and Rashi is Virgo. He is mangalik and hence has a strong influence of Mars in his horoscope. Moon mahadasha is going on. Make his wear a southsea pearl pendant in silver around his neck. ALso he can wear a silver Kara.
He will be fine. Actually he is mangalik so that is why he is hot-tempered, moody, erratic. With time he will be fine. Make him wear Silver and Pearl as they are supposed to cool the Mars energy. Also when he is big make him read Hanuman chalisa daily.