Reptile & Amphibian Forums

i did some searching and i found a site that described how you can make rock walls and hides using expanding spray foam(insullation foam)..you spray and shape as you like,you can add cliffs by glueing regular foam to it,then cover with wet mortor and sprinkle with sand.when it dries it looks a lot like real cliffs and rocks. my new question is,can i make a waterfall out of this stuff? will it become weater logged?or is it waterproof enough for me to create pools of water that spill into eachother on the cliffs.also will moss ever grow on the morter? is it harmfull to the animals??any better ideas or any reason this is not good?? thanks

i was told the after a while the foam will begin to fall apart and will release chemicals into the water killing ur animals and plant. im going to use beckett black foam and the put plastic cement on top of that.