New Albino Checkered! Any advice on communal housing?

[CarrotChunx]

Hey everyone!

Yesterday, I was lucky enough to find this cute little guy at the White Plains reptile expo. Right now he's doing very well in his new home.
In a few months his quarantine will be complete and I'll be moving him over to a 40 gallon which he'll share with my other checkered garter.
Now I'll ask you all this question- I'm well aware that garters do well in pairs (assuming they're the same sex/species/size). But is there a method to introduce the two of them? The last thing I want is to stress them out or have them fight each other. Maybe I'm just paranoid but I only want whats best for my snakes!
Thanks in advance for your help, everyone!