My little guy is nearing 3 months old and has been eating a frozen hoppers for me every 5 days like complete clockwork but I'm worried that they may be getting too small for him - I don't have any means to weigh him right now, but he's a little wider than a quarter at his widest right now and around 2 feet long.

The guy at the reptile store near me told me he should be able to take rat pups but I'm worried that they might be too much for him - Following the "no thicker than the thickest part" rule, it seems like they're JUST about the same thickness as him.

Is three months too soon to start on rat pups?