Placement in the tank

So i bought a bunch of frags from Mrcoral.com and they all seem to be doing well but one. I am wondering where placement in the tank should be. I got some acans, favia and a small frag of riddler chalice. They are all on plugs and right now I just moved them to the sandbed as my freaking fish kept knocking them all off. Will they all do well there? 

Yea I tried glueing some pieces I don't know which fish it is but it goes on a knocking/picking coral to the point it will fall spree every night! I will get some more glue and try again. I know when I got the colony of acans I got from Jared he said to put it no further than halfway up down to the sandbed. I hate the frag plugs as I have nowhere for them to go. Maybe I should pull them off the frag plugs and put them on small pieces of rocks instead!

Depending on how newly cut the frag is you can get a razor blade and wedge it between the plug and the glue the frag is on and pop it off. If it's starting to encrust the plate this won't work.

It also depends on your tank and lights. I'm not as familiar with it as Ahanix but I generally keep favias and acans on the sand. A chalice would be in the top half of my tank.

You should just do a cheap DIY frag rack and use some corner protector to give it a lip. It keeps frags safe.

yea dont put acans on rock if they keep falling they will get damage and worse can develop brown slime disease i know thats what happen to me, im just greatful it did not spread

Saltwater putty is an option as well i hate superglue (unless I am closing a cleaned cut) the putty comes in a tube green surrounding white when mixed it becomes gray I use this for most of my frags .                     Hope that option helps