I just bought 3 very interesting pieces of heat treated driftwood (All Living Things brand) from Petsmart. They are currently floating/soaking in very hot tap water in a bin in the bathtub. They are too large for me to boil, but our tap water gets very hot so I'll simply dump the water and continue adding very hot water as long as needed. I've read that it can take a couple of weeks for driftwood to sink, is that right? Is there anything else I need to do with heat treated driftwood before it can be added to an aquarium? Thank you for any help you may have.