My first snake ever, a few ?s

[jjnnbns]

Hey everyone,
I am new to the snake ownership responsibility, but I have been reading many posts here and I've decided to get a cornsnake. I think that it is a ghost, but I'm not sure. I have a 20gal terarrium with heat on one end right around 83 deg F, and the other is room temp (goes between 67 and 72)

I have a friend who wants to get one as well, but doesn't have the setup. Is it alright to keep two corns in the same tank or will they cause each other undue stress?

Also, I haven't been able to find any info on breeding. It is low on my priority list but I want to know everything that I can about this snake. I am already very pleased with it.

Thanks.

PS If i figure out how to post a pic, would you all try to help me figure out what kind of corn he is?