I'm about 71/2 inches into the back of the Kolibri tank, but I'm going to drop it for a while. A, it's not going to fit me by the time I'm fnished and B, I've got baby things to make. One of my very good friends (I've known her since we were in first grade) is having a baby in August and I need to get a blanket done for her. So, I'm picking that up tonight.