when a ball python was not eating dont gut load him it will do more bad then good small meals and slowly work it up 2 a small rat 1 a week but keep it on a 5 day feeding cyle till he is healthyer a trip to the vet with a fecal sample may be called for to make sure he has not parasite and you can find out the sex if u dont no for sure please excuse the typing its 12:12 am uggg