It will definitely love more branches. Being a tree frog, think trees! I would go with the coco fiber, it is safe plus you can eventually put live plants in itMy tree frogs hate the coco fiber, but I have it covered with live moss, large flat river rocks, and other types of plants. Plus I have a bunch of branches in there, so they almost never touch the ground, usually only to snag a cricket that didn't make its way up a branch.