Frag Glue

[TommDool]

I'm having a problem with my finger Leather Coral staying attached to rubble, I had him on a piece that I elastic to a big rock. THe Elastic broke and it fell and came off the rubble again. What glue can I put in the tank that will be save, and able to glue it under water (Krazy Glue?). I want to attach the frag right to the main Liverock and screw the rubble. What is the best thing to do to make a softy attach. I have it elastic by its edge to a rock now, but not sure if it will work.

Thanks