I use it on loose zoo frags and frags on rock. I like the Duco gel in Walmart paint section and have used tubes and tubes of it with no problem. To glue loose zoos just remove them from the water, put a dollop of the glue on the bottom making sure to get it around the polyps base so when it sets they are partially trapped in the hardened glue.
As soon as you put the glue on place the frag where you want it and move it around a little to make the superglue at the base of the frag stick to the rock you are attatching the frag to. Once the glue begins to stick to the rock hold the frag steady for a few seconds and that is it.
All of these frags were attatched the way I descibed.
