So I am setting up a blackwater biotope though my mother doesn't like the orangish brown color that is there in nature. I think I'll just recreate it with the light I have. Well I was wondering if there is any way to get rid of tannins besides boiling because the wood is too big and I don't want to soak it in water for a few months. I did one other time and I left it in there for 2-3 months and it still made my water super brown. I was thinking since heating it up gets rid of tannins maybe put it in the oven. I know others have done this to get rid of bacteria but can it get rid of tannins. If not is there anything else I can do.