I currently have 8 chicks (4 are 10 days old and 4 are 7 days old). I purchased these from my local feed store. I am possibly going to a local private breeder for 2 more chicks that are 3 wks old. Should i quarantine these 2 new chicks if I get them since they are not from the same place as my other 8? If yes how long? Will the age difference of 7ish days matter safety/health wise? Thanks I am a 1st time chick parent.