How long should you wait before unfollowing?

Hey,

I'm very new to instagram and just getting things set up, i've currently set up a bot but i don't have any idea how long i should be waiting before i can start unfollowing people. Now i've read that instagram's algorithm is constantly changing and no one really knows the exact numbers so i'm just wanting to know what settings you guys are running. The account is 1+ month old by the way.

A couple of days id say.