Drift wood( Bog wood) is great to use, I wash mine with salt ( course) this kills basicly any of the fungi or parasites that may be on it, having used it in a tropical tank perhaps?
You will find that to drift wood is also waterlogged and this will also help to keep your humidity up in the beginning
Just saying- keep and breed tropical fish as well, Kribensis( pelvicachromus pulcher)