I'm having this vision of my finger stuck to a rock, yelling for help with my arm in the tank. (Just kidding)Got this simple tip from garf one of the old old timers years ago. Place some of the super glue on your finger, rub the spot on the rock you want the frag. This breaks the glue skin and gets the glue into the nooks. You could possibly even use a brush 1st if rocks are really dirty.
then glue as normal to the selected spot. It’s so simple and works amazingly well. One of those things that is a “duh” moment but seriously makes it easy peasy. No need for epoxy or anything complex. Give it a try


