I use those purple Reefing Art brand plugs that have a small indent in the middle and fill that just to top of the indent then set the frag on top and squish it just enough for good contact.@TopShelfAquatics I already subscribe to your YouTube channel. So I’ve seen most of these already. However, re-watched for this contest and lo and behold, learned something new I missed in first watch! When gluing to frag plug, use very little glue to encourage growth on plug. I naively assumed corals would grow over my mass blobs of epoxy/glue!