Yeah, rocks/ hydroballs/ LECA on bottom, then garden mesh to keep dirt from falling down there, then substrate. Lucky bamboo and snake plant can grow pretty tall, it just takes time. I know some people grow ornamental fig too and that can get tall and it's sturdy. Here's a thread about a list of frog safe plants if it helps: http://www.frogforum.net/vivarium-te...exception.html In my tank photo, the bamboo shoot is hiding behind the snake plant (It's the tallest one with leaves behind the dark green spiky plant.)