driftwood.

TLH

Large Fish
Jun 27, 2005
703
1
0
Northants;England
#6
I would say bogwood is best.It's heavy and sinks easy and doesn't break up so easily.It's bits of dead roots that can be years and years old.I believe the piece I have is called Mopani wood.

It usually comes pre-sandblasted but soak it well for a couple of days atleast changing the water twice daily before you put it in the tank.