Best way to glue corals to rock???

[ReeferMadness]

i recently bought the epoxy holdfast to try to glue (need to knead holdfast) some corals to live rock, but it doesn't seem to hold to well. what's the best way to glue the corals??? is crazy glue in gel form better? Also, how can i go about glueing zoos down if they are not attached to any rock. please help me out. thanks a bunch in advance

 

[ShaunW]

http://www.hometown-hobbies.com/inc/sdetail/16526

http://www.bsiadhesives.com/Pages/hobby/ca.html