I am using Grow More 16-8-24.
The Arboretum is supplied by 5 skylights facing SE, One Suntube 14 inches and one 10 inches facing Direct South. And one 4' T-5 (6500) vertically behind each plant. And 9 more T-5's on the other side of the room (mainly for the Vegetables in the Aquaponic System) but allot of that light gets to the Banana Plants also.
Craig
