It was a fake deco but one my at the time Red Tail Shark loved to keep as her home base corner so I couldn't get rid of it. Then it grew such a lovely bunch of Fern I really couldn't get rid of it.
The bottom dwellers really love this thing, it just went with some of the bottom dwellers to my DD and her new home and 46G tank. They are still very happy there.
It would work as well with a DW too or I have even had one that attached to a piece of Petrified Stone. It had some rough surface areas and it grew onto it.
I used fishing line to attach it, but in the future I would use cotton thread in the matching color of the item you are attaching it to. The fishing line worries me if it comes undone and a fish could get stuck in it. I just took out the last of my rocks and DW with fishing line on it and may try the super glue gel in the future.