I bought a rather large piece of driftwood from my lfs today. It has supposedly already been boiled and baked however its been soaking in hot water in my bathtub for several hours already. I have been taking a wire brush to it to remove loose pieces. It is a stump with lots of holes and cave-like parts. It seems that some of these crevices have a softer consistency to the wood. Will using the wire brush be enough to prepare the wood for my tank or should I really go at it with a dremel? I am not sure if its rotten or not. I can just barely push my fingernail into the "insides" of these crevices whereas the external parts of the stump are very hard. Thanks