Building materials

[Buphy]

So I'm considering trying to build some of my own decorations. I was wondering; what are safe materials to use or how can I make them safe. Soda bottle plastic, wood not yet treated, concrete, or something lighter but formable like it?

 

[Buphy]

Well I got some old coral from my parents tank that's been in storage for like 20+ years so I'm not doing it now but I'd still like to hear some input.

 

[Buphy]

This needs a bump. Really don't want to try something and it end up being bad for the fish.

 

[in_the_seance]

Anything that doesn't leech stuff into the water. Coral will probably harden your water. Wood will rot eventually. Plastic is fine

 

[pops]

for gluing if you plan to 100% silicone, same as you would use to reseal a tank. also a hot glue gun that takes plastic sticks will work also.

 

[Buphy]

Ya coral is gone, fish kept cutting themselves on it... Any recommendations for like cave construction? Kinda tired of piecing together rocks.

 

[in_the_seance]

Piece of pvc with rocks/sand glued to it