DIY 3d background?
Went through a lot of this DIY and haven't seen any threads about this type of project, and of course not having seen anyones setup involving these structures, I assume its not wise. The Concrete and foam trick with some using epoxy resin and some whatever else to form cavernous rock-like structure without use of actual flintstone's bedrock in their aquarium. Has anyone tried wanted to, success? or rather is this some terrible omen of planted tank keeping?