The male at that size sould not be going off feed. Females I find go off after a 1000 grams for some reason. Since you have both off feed and the one should be eating well, I would guess it is a husbandry issue! Make sure everthing is perfect. Here is a caresheet: http://ball-pythons.net/forums/showt...ius)-Caresheet

Follow that and hope they start eating!