I ask because Chloe is 5 months next week and she is still tiny. She was such a big baby so I expected her to get to the 5-5.5 lb range. Ax was almost the size he is now at 5 months, just a lot leaner. Chloe is an inch shorter than Axle in both height and length as well as being lean. They have been or raw for about 6 weeks now (with a bit of good quality grain free kibble as their lunchtime meal mon-fri while i'm at work) so I'm wondering if this is why she is taking her time catching up to Axle. It would be funny if she stayed smaller than him since she was such a big elephant for a Chi pup and he was a tiny dainty thing!