My diamond didnt feed for almost 3 months when I first got him and I was REALLY worried... I tried everything I possibly could, but he just wouldnt take it. Then one day I tried again and he snapped it up and has been a pretty good feeder ever since (he takes FOREVER to find the head of a rat but is a quick eater once he gets started) My diamod is smaller than he should be at his age and yours might be like that to once it starts feeding properly, but as long as there is plenty of body weight and you can see progress in his size and weight gain, then you are doing okay