[hoppycalif]

Bogwood is wood that has been in water long enough to sink, and is durable enough not to be rotted by that time. Driftwood, technically, has to be floating wood, or it would be at the bottom of the waterway it came from. Just nit picking, I know, but whatever we call the wood we use, we should be clear about what we are looking for. Some hardwoods are almost as dense as water, and a few are more dense, so they are much easier to keep from floating. Those are the ideal "driftwood" for an aquarium.