Yup. I get mine at Lowes. Its like $1.69 for a double pack and it works wonders. I can probably do at leat 10 frags with each tube, mind you I over do it with glue. Make sure you get GEL or it won't work under water.
i've never fragged or been fragged. find it hard to imagine that a live plant/coral can be glued to a rock. couldnt do that in my back yard.
do you have to treat the snipped end that is being glued? the glue doesnt have any leaching affect on the water? or plant? what if you want to move it, do u have to leave a stump behind? if so, can you do anything to eventuallly remove the stump
the glue would dry and cure in a matter of minutes upon touching the water so no leaching affect. Corals are animals, not plants, and every individual polyp can be considered a independent organism. I never treat the ends that are being glued, maybe touch it to some paper towels to dry it up a bit. If you want to move it the glue breaks easily when you apply force.
1. Take frag out of the water
2. Apply glue to the bottom of the frag
3. Dip glue into tank for a few seconds
4. Pull frag back out and let the glue dry for a few(5 or so) seconds.
5. Put the frag where you want it and play with the glue on the rock and make sure it takes to it.
6. Leave it alone
As for how long frags can stay out of water, don't worry to much about time. They can last quite a while safely out of water. Probably around 30 minutes is the longest I've kept a frag out.