Ive bought a Small pond which Im going to attach a filter to to use in the vivarium so that he can get right into it and make an attractive feature. However as its going to be going above ground the plan is to build it on a large peice of wood using rocks and plants so that it can actually be removed to clean it. However I need some material to form the base that this pond will sit on. Im thinking of using durable fibreglass like the ponds made of but does anyone know of another alternative to use? Also where would be a good place to get some authentic rocks for it?