I have had my Redtailedboa for about 10 years now, he is a fully grown 6 ft Male. About 3 months ago he got a respiratory infection but we got him to the vet and he got better quick. I clean his cage once a week and he gets clean water every other day. Recently within the last 3 weeks he has become EXTREMELY aggressive. open mouth hissing when I take him out of his cage, he even striked at me once (did not bite me). But it is getting to the point I dont want to handle him and am looking to possibly re-home. I handle him once every 1-3 days, so I dont know if I need to handle him more or if I need to leave him alone.