Back when I was a young lad I made the mistake of housing 2 boas together. When I went to feed I fed one a rat and went to feed the other one a rat right away. Long story short, the one that was eating was struck at and wrapped on by the one without a rat and all hell broke loose. Boas were striking at any heat source and it was very scary and hard to seperate the animals. DO NOT house together it is pointless. They gain nothing from it and you could find yourself in the same situation. If you don't have the money to house them seperately then don't purchase animals. Husbandry should be figured out before you buy animals.