Befree, lots of Sweetgum trees in Louisiana. It's what I used in my pond and were added as one of the last things I did at the time of ponds completion and just before water was added. I also added the root balls from the sweet gum trees.
I have had no problems with the root balls or the trees floating. Maybe because the sweetgum tree holds a lot of water in the tree itself. I have seen no problems with these trees and they hold fish.
Tracy
