First, I would suggest buying a copy of "The Book of Coral Propagation" by Anthony Calfo. Also, do a search on the site on coral fragging. That will probably give you more info than you wanted
The best way to frag
poylps...I'm assuming you mean zoanthids...is to put several rocks around them and let the poylps grow onto them.
You can do shrooms
the same way or you can cut them. Cut the shroom like a pizza and leave it alone for about a week. Then, finish dividing it and try to get some of the center with each piece. Put the frags
on some rock rubble in a low flow area and they will attach on their own...usually within a week or less.
For the leather corals, cut off a piece at least 2" long. Do this in a bowl outside the tank. Then, you can either lay the cut frag
on some rubble and let it attach or you can attach it to a rock. One way to do this is to glue 1/2 of a plastic toothpic to a rock with gel type super glue. Impale the frag
on the toothpick and bend the end over so the frag
can't slide off. It will attach to the rock and tpick. Or, you can attach it to a rock with bridal veil and super glue. The toothpick method works better IME
though. I like to dip the frags
and donor colony in some Kent Tech D before returning them to the tank.