new to bull snakes

So my brother caught 2 bull snakes in the last couple days. We put them in a cage (separately of course) and I have been thinking im going to keep them. One of them will hiss a little but overall seems like a nice enough snake and is getting used to handling. The other hisses like crazy and rattles its tail. I haven't been able to hold the second one because it seems so angry. I have read that they are usually all bluff but how true is that?
They are about 4 feet long so im assuming they are a couple years old. they seem very healthy, they stick out their tongues a lot, they are very active and their eyes are clear. I have snake experience with ball pythons and boas. I have been bit in the past by my other snakes. how bad is a bull bite?
Also I was curious if these guys will do well in tubs? thinking about going that route do to space.
Do they usually adapt to everything well and feed well after being captured?
anything I should know about these guys? I know they should be at 85 degrees, news paper works, no added humidity except for bowl, have a hide for them.
thank you for inputs
christian

Keep the wild in the wild! If you are looking into getting a bull snake, go to a breeder, but leave the wild snakes out in the wild please

Before you decide to keep them, if you haven't already you might want to check the local laws about keeping wild caught animals, most states do have certain restrictions about this, and varies from state to state......

Like he said I wouldn't keep them. By keeping them you take 2 breeding bull snakes out of the population when you could get one from a breeder and not affect the breeding population in your area. If they were babies I might say otherwise since few make it to maturity but these already have and it will affect the population in your area

I know this is an old thread, but usually there are laws restricting or limited capture and keeping native species. Been a while since I've been on the board