I have taken my Aquascape Pro 20 off-line, in the fish room to see if the Aquascape Pro 60 can carry the entire room. It is doing fine. Yesterday 12 drops, going strong. Today, added two more drops in the Oscar tank, and that makes 14 and the room is jostling with air!
I have three more drops to make before the room is done, that will make 17 drops and will see how it handles that!