Gold vine drift wood leaking tannins after 1 year...

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sealife

Aquarium Advice FINatic
Joined
Aug 7, 2013
Messages
739
Location
Australia.
Hello,
About 1 year ago i bought a small piece of golden vine driftwood.
When i bought it i boiled it etc etc to the point that no tannins were leaking, and i had it in my tank for around 6 months and water was still crystal clear. No tannins leaked.

I took out the wood and left it out for around 6 months. And now i want to re-use it again. So i left it in a bucket of water to try get it water logged and sink.

To my surprise, its leaking tannins again.

Is this normal? If so, why?

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Is a little surprising. Is this the Mongolian wood?

I'm wondering if it could be dead organic matter leaching out?
 
Golden vine drift wood.

So much tannins coming out, i cant beleive it.

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