Propagation - fish & corals

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I bought some frags yesterday and I have a few questions:

1) the frags thatare on them pegs that you push into the sand-if I want to mount them on a rock, how would I remove that little "tit" that you push in the sand?

2) I have that 2-part putty, it really doesn't hold to good I think. What do y'all think? Should I just use super glue gel, are use both?

3) I have a frag no on the frag peg, do I just mount it on a rock? Any advice?
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