you might want to be careful about driftwood from local lakes...I am not sure whether or not I believe it or not...but this was written to a posting I started about driftwood from Harrison Lake!
If the wood is cedar, you might want to reconsider using it.
A couple years back I collected a beautiful piece of cedar to use as a centre piece. But then I thought I better check up on it first. I had trouble finding consensus on whether cedar was aquarium safe or not, but with all the concerns out there, decided to give up, put it in my garden and get a manzanita stump for my aquarium.
The concerns around cedar are due to the same properties that make it the perfect choice for building fences and decks. The natural oils in the wood preserve it and repel insects. And because these oils are toxic to rodents you can't use cedar with rodents, since chewing it makes them sick. So I wouldn't want to use it with any invertebrates or wood-rasping plecos either.
A few people out there do make claims that the cedar oils are a good thing in the aquarium because they kill some parasites. But the vast majority advise against using cedar. Some examples:
http://www.tropicalfishkeeping.com/f...quarium-22486/
http://www.fishlore.com/fishforum/dr...driftwood.html
http://www.aquaticplantcentral.com/f...not-use-2.html
Cedar is also very buoyant, and thus would be hard to get to sink. I tried soaking my piece for a couple months with no luck (although this did allow me lots of time to research whether it was safe).