Click through the pictures to see descriptions and a guide to building up your rock background
1. Cut up and shape your polystyrene, use aquatic safe glue to attach pieces together.
2. Water down and apply 3 or 4 layers of grout, gradually getting thicker to make the structure more rigid.
3. Paint the grout when fully hardened.
4. Seal the painted rock background with a non odorous varnish - leave to cure for several days before putting it in with your bearded dragon.
And lastly, I apologies for the poor quality of some images - my camera was upgraded towards the end.