Thank you all
What always kept me away from plastic backgrounds is this, that Panaque damage anything plastic and thus eat things they shouldn't. Also, plastic surfaces leach monomers which aren't the best.
From what i found about this background, its made from safe plastic PolyUrea outside and PolyUrethane inside. PolyUrea is quite tough and supposedly very difficult to scratch. They also don't use colors but rocks and sands for coloring the backgrounds.
Is the background abrasive like sandpaper, or does it feel like sand but not overly rough?
I read more on their website and there does is a chance its made with sand on the outside, for colouring and texture. Quite interesting.
It comes out at around 1000$ for my tank but they don't ship outside the US. I do i am interested in using it though
Still, might be best going with a black background outside the tank, just to not have more plastics than necessary inside?
This background would help with the rocks i have inside to give a more uniform look and help conceal a return pipe that passes on the right rear corner. Plastic is still plastic though, and more plastic than necessary, with a massive surface area. Still struggling to decide between natural looks and purely natural decorations, but i think going with natural decoration is better/healthier even if its difficult to make the tank look as impressive.
Would a black background outside be advantageous or a printed photo of a Rio Xingu underwater biotope, which would be the same theme as the tank?