Any Decent 3d Backgrounds Out There?...

[bogwood]

I am setting up a shelldweller cichlid tank... these fish are manic burrowers so plants are a no go really... so, I was thinking of a 3D background... I've seen some authentic looking 'rock' facia backgrounds but they cost a fortune... are there any 'cheaper' decent looking alternatives?... (I've seen some 3D backgrounds that you buy off a roll 'by the foot'...

 

[Alex_]

Black. all the other ones look like crap.