Ok so I have a 40 x 40 x 70 tank coming soon and am looking to build my first live viv including false background with plants growing from it etc. Though am struggling with finding UK equivalents to materials such as handi-foam and great stuff etc. I want something long lasting and waterproof obviously, though preferably black, though I could just silicone the background if I am completely desperate. Been looking on ebay and amazon and have found plenty of cheap (£5-10) options though am not sure what would be safe for frogs (probably arboreal dart frogs or a tree frog of some sort ) if any UK based members would like to chime in on what they used and how well it worked that would be brilliant thanks
Also I am planning on going to the beach to pick up rocks and drift wood and was wondering if there are any rules in terms of what to avoid and how to clean. I have used this for bearded dragon tanks by simply skinning and boiling tree trunks but know that frogs are completely different in that their skin is ultra absorbent!
I have kept reed frogs successfully before years ago btw, just never built something like this including my own sourced materials!

Thanks