Started with this Green Polyp Toadstool in the center of this pic.
FTS 1/26/14 by
ritter6788, on Flickr
The glue isn't really necessary but a light spread of glue can help hold the coral still in a high flow area. The leather slimes though and glue alone won't help it attach much. The rubberband is the key here.
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
One day later. You'll want to check the rubberbands from time to time to make sure they aren't too loose or too tight. Just enough tension to keep the frag from moving but not so tight you cut the coral in pieces.
Untitled by
ritter6788, on Flickr
10 days later most of the frags were attached and the rubberbands could be removed,
Untitled by
ritter6788, on Flickr
Untitled by
ritter6788, on Flickr
Green Polyp Toadstool by
ritter6788, on Flickr