well, doesn't appear others have had as much luck with glueing as I have. I've never had problems with it. "to each his own" I guess.
check out this excert from Calfo from coralgrowing.com. This guy knows his stuff, so you may want to try the sewing it down.
http://www.coralgrowing.com/SecuringPropagatedCorals.php
"Cyanoacrylate (superglue) has been heralded like the eighth wonder of the world for attaching coral categorically. Many aquarists read in aquarium literature and hear about the convenience of using this product, but experience with it is often met with frustration, disappointment and a lost coral fragment blowing around the aquarium. Quite frankly, I do not understand or agree with all of the hubbub surrounding this technique especially as it pertains to species other than SPS scleractinians. I have handled many thousands of fragmented divisions of soft and hard coral (secured with various techniques), and find the process of gluing with cyanoacrylate to be tedious, at best, for many popular coral species. I have listened to more aquarists than not complain through the years about difficulties with utilizing this technique that really cannot be attributed to procedural faults. Defenders maintain that there is a very specific protocol (that is ironically quite variable among the defenders) for attaching soft corals with cyanoacrylate glue. Please forgive me, but I am just not willing to buy into the hype of a ten-step procedure for getting super glue to set that involves a Tibetan Sherpa, a stick of chewing gum and a roll of duct tape. Indeed, I am exaggerating here for the purpose of a bit of humor, but still I mean to relate that the application of cyanoacrylate glues to living coral is often misunderstood or misapplied by aquarists. The time required to apply such glue is no faster than a simple elastic band or tie/stitch and it certainly is not as reliable (where a stitch works the first time, every time… cyanoacrylate may need to be re-applied). As super as it may be around the household, it is not a universal adhesive for most or even many corals. Cyanoacrylate glue can indeed be very useful for some coral like SPS species, but it is ultimately very challenging to employ with many other corals. It seems to work best with surfaces (living or not) that can easily be patted dry and handled out of water for some time without suffering or secreting much mucus, such as the broken edge and exposed corallum of stony corals, the woody gorgonin stem of a gorgonian and the rough surfaces of many "leather" corals. These are very fine places to which one may easily and successfully bond cyanoacrylate glue to another surface. One of my favorite applications of cyanoacrylate glue is upon the underside of stoloniferous corals ("mat" formed like Star polyps) for setting sheets of living coral in place upon the aquarium's vertical back and side walls (temporarily drop water level to do this). Other artifacts of the aquarium system like plumbing/pipes and overflow wells may be covered in like kind with a living veil of coral by cyanoacrylate glue. Yet, other corals still, like individual zoantharians (button polyps or mushrooms anemones) and "slimy"/mucous corals like "Colt" coral (Klyxum), are very challenging to secure anywhere with cyanoacrylate and are best anchored by other means. With the intention of trying to keep this article shorter than the preamble to the Constitution <G>, let me direct aquarists interested in learning more about the various subtleties for properly applying cyanoacrylate glue abroad onto the internet and more specifically to a wonderful site for aquarists: GARF. For aquarists not familiar with the work of Leroy and Sally Jo Headlee, their site is filled with an enormous amount of very useful and instructional content in articles, images and video on a wide range of topics embracing reef aquarium science. Know that there are likely more than a few ways to successfully apply cyanoacrylate glue to live coral for settlement."