metals in aquarium???

[joshcanfield]

hey I am building a drift wood center piece out of polymer clay for my aquarium. I need a medium to use as a skeleton and a space filler. How to Scuplt Polymer Clay Tree | VhampyreArt.com . here is a basic idea of what I need to do. but of course upside down to look like a root system. I have read some concerning things about metals in an aquarium. and i know aluminum foil is no good because it corrodes and will harm my fish. I dont know how the clay is about letting things soak through it and idk if the corrosion will leak through the clay. I would rather be safe than sorry.

Does any body know of any mediums I can use instead of the wire and the foil for this project. I also thought to just cure 1/4'' pieces of clay at a time and keep layering it but idk if that works or not.

thanks,
josh

 

[jetajockey]

I don't think i'd use sculpting clay either. I don't know if it has anything in it that will cause an issue but I have read a few resources that say to stay away from it. Granted, it was for a different aquarium application.

I've used natural clay several times for root tabs and other stuff, and also terra cotta pieces without any problem.

 

[BigJim]

There are a couple of nice builds around here using construction foam and sealing it with an epoxy or something similar. Someone did a tree root background recently.