If you can get a fan on the colas it will help with standing air and mold during high humidity nights.
A nice defoliation under the plant canopy will help with airflow. Be sure to get that mold cut out asap as it spreads.
They look nice, finish strong my gromie friend.
@Todzilla, Hey Mate, thanks for the extensive information. Sadly all of the points have already been implemented. The last week's we had almost over 80% RH so I think I can't do very much more.