Jess your diet sounds great for them! I would however add the cottage cheese or yougurt. I realize axle needs healthy food also and my babies come out so nice and plump. I am not sure at what stage pinky hopper jumper etc he eats at but it may help him to gain his weight. also as a preventative as you said earlier any toxin in his diet would be very damaging (im sure you already do this but,) sterilize their water bottles at least once a week in the dishwasher and freeze all potentially harmful foods (like eggshells) so that the pets you breed are healthier and her their babies are also! again if I can help you any other way about the rats pm me. I have never lost a snake due to food related issues and have always raised their dinners.