I thought my snake was hungry because he was hanging out by his water. Someone told me that snakes go near water to look for rodents who are coming to get a drink. We got him his meal and he didn't eat it. We tried again the next day and nothing. One more day went by and he finally ate it. His is on small rats now. How often should he eat? We have been trying every 10 days. Is that too soon? How long is too long without eating?