Today I went to my local animal shelter and two ball pythons are for sale. One ball python is a little timid, 3ft and a diameter of 2 inches. The smaller one is very social about 2.5ft and a diameter of 1.5 inches about. I would love to rescue these pythons. I know it is not good to have pythons living in the same tank, but these pythons were raised together and are still together now at the shelter. I want to get both but I would want to make sure I'm prepared for both. I have a 20 gal tank and a 40gal tank.

Another concern that I have is currently they eat live mice, and I am only used to frozen. Is it hard to switch the pythons to frozen mice? I'm very tender hearted and I not positive I could see the mice die. I am willing to try though if the frozen mice won't work.
Please let me know of you have any advice on the housing of these beautiful ball pythons or the feeding! Thank you!