My husband just brought home two ball pythons from someone who was selling them/couldn't keep them - I had a ball python when I was younger so while it isn't my first snake experience, it's been a while... and since back then 15 years ago I was not able to keep it for more than a couple of years this is a while different scenario because...
These snakes are BIG - I am sure that one of them is the maximum size that a ball python can reach. I can't remember if the max out at 3-5 ft but this one looks like it is at the max...
There are two, they advised both female and male, and that the male was the bigger one...

I'm pretty sure that it would be the other way around, right? If there is one that is 4-5 ft it's probably a female. The other is pretty big too, but not as big as the other...

They were feeding it live mice, and I'm thinking that they need to be eating rats... and I would prefer to buy the frozen ones... but with them being used to the live mice I'm wondering if it will be an issue feeding them? Also the "male" - or female BIG one hasn't eaten while the other wolfed down 3 mice in one sitting...

I'm sure I can probably find someone useful info here, but HELLO and maybe some of you have some advise/tips

(they were living in a small aquarium too, and are temporarily living in it so we are going to have to buy a bigger terrarium/tank (??) - they have been living together and the prior owner said that "the female" laid eggs which he just disposed of... ...
Help! - thank you!