Communal housing?

[guidofatherof5]

Most of the time males don't seek females unless the female is sending signals (pheromones).
About all you can do is try it out and see what happens. I think garters like company. They feel more secure with others.

[Stefan-A]

Most of the time males don't seek females unless the female is sending signals (pheromones).

When I mixed sexes, that happened constantly, every day.