I agree with everything above. We need more info for sure.
Right off the bat though, I will say it sounds like you don't have a baby with a bad attitude, you have a very nervous snake that doesn't know how to feel safe and is acting defensively.
I have the feeling you should probably consider a smaller tub setup for the first couple of months until you two get to know each other and you can learn their eating habits and normal behavior...but that can also depend on how you have things set up and answer the above as well