TankGirl
Aquarium Advice Addict
I have a piece of cedar in one of my tanks, BUT it came from the Chesapeake Bay and it had been floating for so long that it was very porous and light, and no longer had the cedar aroma, indicating to me that any resin it had was long gone. It has been in this particular tank for 2-3 years without any signs of difficulty. A fresh piece of cedar, say from a fallen tree, might not be the best choice.
Edit: Also, it may be confused with cypress, which is often growing in a bog, and the "knees" make good wood for tanks because they are already waterlogged.
Edit: Also, it may be confused with cypress, which is often growing in a bog, and the "knees" make good wood for tanks because they are already waterlogged.