Effects of tannins on flora/fauna - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 11-08-2006, 05:50 PM Thread Starter
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Effects of tannins on flora/fauna

Hey guys. I've just started setting up my first planted tank. So far I just have Eco Complete, some minnows, some java fern and a chunk of grape wood in there now. I have some RCS and some other plants on the way, but not here yet.

My question is: I boiled the grape wood for about an hour and soaked it for a few days, but I'm still having to weight it down in the tank and it's still leeching tannins into the the water (quite a bit, actually). What affect with the tannins have on the fish, shrimp and plants? Anything negative I should be concerned about?

Thanks!
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post #2 of 5 (permalink) Old 11-08-2006, 10:13 PM Thread Starter
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Any input? I'm trying to decide if I should by an in-tank breeder box so I can keep my soon to arrive RCS in my Oscar tank until the tannins are all leeched out of the wood in the other tank.

Thanks!
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post #3 of 5 (permalink) Old 11-08-2006, 10:38 PM
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Tannins leaching into the water will soften your water. It shouldn't have a negative impact on plants or fish. In fact, Blackwater Expert, by Kent actually adds tanins to their product to do just that....soften the water and make it a bit brown/yellow. Adding the RCS to an Oscar tank? I'm supposing the Oscars are not there? Otherwise adding the RCS to your Oscar tank will be like dumping a bunch of live food in there. I strongly advise that you don't!


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post #4 of 5 (permalink) Old 11-08-2006, 10:40 PM
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Sorry...didn't read the 'in tank breeder box' till after I posted.


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post #5 of 5 (permalink) Old 11-08-2006, 10:49 PM Thread Starter
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Cool! I have ridiculously hard water to begin with, so maybe it's a good thing. Thanks for the reply! And, no, I'd never put anything I wanted to keep (including fingers I wasn't paying attention to) inside my Oscar/Convict tank. Haha.
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