can you use it underwater?
I mean like glueing frags to the rock underwater without taking the rock out of the tank? I hate everytime when i want to glue frags i have to take out the rocks and create a mess.
Take the frag and dry off the bottom. Put a good sized glob of the gel on the frag, then put it back in the water and press and hold it where you want it to stick. In a few 10's of seconds, it should stay put.