I cut my orange between the mouth's about a mounth ago and reglued the cutting, and it is doing great. It was my first time propagating anything, so it was a little nerve racking. They are pretty hardy and you can take them out of the water and dry them off with a towel. aif the rock you want to attach them to can not be removed from the tank, then you might want to try some fine netting to help the fight any current until they attach. trial and error, and there is only one way to learn how to do it and that is to do it.