Have you been dipping the corals? In what? How often? how often people dip, and how do they decide how often it needs to be dipped. after the first dip do they put the coral in the same quarantine tank or a different new tank?
That is all part of removing all possible pests. Many folks don't keep the plug the coral came on. Remove it and mount to another plug or rock. I got this part and I'm good on this
Careful inspection for pests is important along with the dips.how do people inspect for coral pests? do they use a lense? what do they look for?
Once you decide on a final placement for a coral, I like to glue it on with a combination of super glue and epoxy. Give the landing zone a little scrub with a toothbrush, wad up a hunk of epoxy, put some SG on the frag, stick epoxy to the SG and then SG the frag to the rock.I got this part, thanks
SG sets up fast but is not a strong connection. Epoxy is a strong connection but takes a bit of time to set up. This way you get the best of both worlds.
I wouldn't peel any coral off rock/frag to mount. You can cut away lots of the rock with a band saw, hand saw (like a coping saw w/ diamond blade) or most commonly, use 'bone cutters'.
There are lots of YouTube vids of the process. The ones by Vivid Aquarium are good.