[G1GY]

The wood that is used in aquariums is bog wood. This wood spent many years in a bog and is full of tanum(sp)(The same stuff in peat moss.). This wood looks like drift wood, but is very dark in colour because of the tanum that's in it and it's heavier than other wood because of this. This wood does not rot very often and softens your water because of the tanum that's released from it(Great for South american fish, but bad for Africans.). Drift wood will need to be held down to stop from floating untill it's water logged and will most likely foul your water when it starts to rot.

I've seen many people try to use drift wood over the years, but very few keep it in their tank for long.

I wouldn't use it.

Just my opinion though.