For softies, I can never get glue to work. They usually just "shed" the tissue that is attached to the glue and come lose. Using the toothpick method, I'd had frags actually tear apart after a few days and free themselves. Lately, I've been using eggcrate cages. Make an eggcrate box about 1.5" high, and 2"x2" wide. No top or bottom, and held together with plastic wire ties. Set it on a rock, and drop in the softie. Usually attached in a couple days. Then you just snip the ties and the cage falls away.