Just to throw my 2 cents in. My 1 year old is sitting around 800+ grams right now, I switched him from every 7 days to every 14 once he start refusing the weekly offer pretty consistently. I've had him on a small rat every 14 days for a few feedings and he just seems to respond better than he was right before I transitioned him. I haven't been weighing him quite as consistenly as I did leading up to his hatch day, but he seems to be doing well, with no noticably difference in behavior.