I have tried my hand with live plants in my smaller tanks and am wanting to try a more challenging aquascape in my new, larger tank. I have some inspiration shown here but I'm not wanting to replicate that exactly. I want to do a sand foreground with a larger river rock divider before smaller river gravel behind it and more rounded. I want do do some shorter plants around the edge and build up the back. I'm thinking kind of a lake look. I like the driftwood for the back and maybe attaching some java moss to give it life. I like the bright blue background from the picture also. I just am not sure how to build up the back without adding a ton of weight. I'm concerned about weight on a wrought iron stand. I don't want to build with rock and I don't like the idea of ramping up the river gravel. I saw some suggestions about using eggcrate or filling water bottles to build up the back. Anyone have suggestions?