Diy Decorations

[AquaBaz]

Hi there, I'm hoping you guys can help me out here. I have a 2ft tank and a 3.5ft tank that both have a very natural, river-bed-like appearance. But there isn't really much for fish to swim in and out and around if you know what I mean? What I am after is some materials that are aquarium safe that I could use to create a (natural looking) decoration/backing which would allow caves for the plecs, tunnels for the fish to swim through and easy to clean.

I've read a few DIY walk-through's for DIY Coral effect using cement for saltwater aquariums but mine is freshwater. So does anyone have any ideas?

Basically, if I can create a backdrop that would allow fish to swim through, that would be ideal. I don't want to spend ridiculous money on decorations, especially since I love doing things myself. So what materials could you use?

Thanks in advance.

 

[llamalord305]

Search up coconit caves in google. Those are nice. What about PVC condos?
Check out this DIY library.

LINK