bonsai

do you think it's a problem that i repotted my bonsai with a potting soil with "grows plants twice as big!" on the label? my little ficus bonsai, taro, was very suddenly sick and dropping all his leaves. so i had to repot him, and didn't realize that i only had the miracle-gro potting soil. sheeit. also was supposed to use lots of volcanic rock or gravel, which i didn't have. we'll see how he does, though.