Mopani Wood

Hi, I got myself a couple of pieces of mopani wood for the tank, i've been soaking them in hot water for around three weeks now, changing the water a couple of times a day. They are still leaking a lot of tannins. Anyone got any experience of this or can say roughly how long this will go on for. I'm not to bothered about a tint of tannins in the tank, but at the moment it is way too dark to have in the tank.
Thanks Andy.

I did brush my wood before boiling.

Thanks for the reply's , I suppose i could boil the two smaller pieces but the main piece is quite large and i don't have anything big enough, even putting the piece on its side, it would still be too big. I have it in a large white tub at the moment and it just about fits in there, i'm wondering if the colour maybe looks darker against the solid white background ?? maybe i will just put it in the tank and deal with the consequences. As long as it doesn't go too dark i will be happy 

Words of wisdom  thank you Sue, i'll continue to soak the wood in water for another week or so, i waited long enough for the tank to cycle so a bit of wood, is not going to bother me ........... 

Yes there is a difference between putting the wood in a bucket and pouring boiling water over it then letting it sit in the hot water; and putting the wood in a large pan of water on the top of the cooker and actually boiling it like you would with a pan of vegetables, which a lot of people do. It's the second one that makes the wood fall apart faster, and that's what I assume people mean when they say to boil wood.

I've not really heard of there being any problems after introducing new wood other than a mould growing on the wood and tannins being released (both harmless and disappear with time). I soaked my Mopani for a week in a bucket of water which i changed daily, replacing with boilinh water each time if memory serves.