I have a Hermann's that is almost a year old (I think) and my daughter has one a few months younger. Mine grew a little over a gram a week in the beginning and now gains about 3 grams/week. Hers barely gains 1 gram a week. Is mine growing too fast? Hers growing too slow? They are eating the same thing (weeds, spring mix, Mazuri, cactus pads). Mine eats like a pig, though.