As fish 'n' fries said, the tannins leaching out are harmless, and carbon in your filter will reduce it. If you don't want to mess with it in the tank just keep your wood soaking and change the water every day. You will probably see the water start to clear in a a week or so. But it will vary. Boiling will speed up the process some, but it may still just take time.
This hobby offers so many
opportunities for us to practice patience, don't it??