Tank filling options

Wow , no answers! Yes leave attached. You must keep the O rings under pressure.
Thank you for the answer đź‘Ťđź‘ŤI just re read my post and I want to make sure I am being clear in my question,,I'm talking about leaving the air tank attached to the rifle , would that hurt the seals over time ? Like when I'm done shooting should I remove the tank when not using it? Thank you!