Quote Originally Posted by JoshSloane View Post
If he is a rescue boa then I would bet that they had his age wrong. Not that it plays into his aggression issue at all, but rescues are notorious for getting the age and sex wrong. Likely he was underfed as a hatchling and was super small for his age, leading the rescue to inappropriately set his age too young. He could have been malnourished, and associated that with mistreatment and reacted aggressively. Once you acquired him and brought his food intake up he likely calmed down and the aggression dissipated. Spreading out his food schedule could likely bring back the association of neglect. If he isn't overweight on the weekly food schedule then why change? Every snake is distinct in its growth and metabolic rate, so weekly feedings might be right for him.
OP said in the post that it was only around a foot when he got it. I dont think it is a rescue issue