Let me try. So I siliconed my net pots and cork bark pieces to the exo terra foam background.
i was going to just great stuff around it all to keep sturdy but was nervous it all night fall off. So I dipped toothpicks in silicone and stuck them in the foam then clipped them to size.
then I foamed all around the bark.
here is my water fall driftwood. Drilled a hole in back. Pump will be in right back corner. Tube will be inside wood. Tested and looked perfect.
This is what I wanted to use. But it's huge! But awesome.
i have Eco earth and was going to get some Pete moss from lowes to mix in before I silicon all the foam and background. Not really looking forward to this part.