That shouldn't be necessary. Try placing the sand in the tank first, then the water slowly on top of the sand. Let the water land on a saucer (plate) so it disrupts the sand as little as possible.
Usually I run the needle through the base about three times so there are three sutures holding the frag in place. And no, I never bother to wrap the thread around the frag.
The rock that my Kenya Tree has attached itself to is far too large to remove from the tank each time. I use the zip...
I have had some success fragging my kenya tree using a cable tie (zip tie?). I attach the cable tie around the branch I want to frag and slowly tighten it over the course of about a week until the branch practically falls off on it's own. Then take a razor blade to whats left.
As far as...
A few questions for ya.....
Do you currently have a reef tank? If so what size? Are you affiliated with a LFS? And last but certainly not least, how do plan to organize an informal club from Houston? :? Or do you now live here?
I tried your email address but it didn't seem to work?!
a razor blade would be fine, or even a sharp pair of scissors. then just use a piece of thread to tie the new frag to a rock until it attaches on its own (a few days).