Tannins?

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Dark Rose

Feeder Fish
MFK Member
Mar 27, 2013
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United States
Just setting up another tank, and got some driftwood (Mopani wood and Madagascar driftwood, whatever that is...) and even though I boiled them each 3 times, there's still tannins left, leaching into my tank.

Will the filter eventually clear that out, or are water changes actually required? Right now the filter is in stock form, with foam, carbon, and bio media, and if the filter will get the tannins, not sure which "segment" of filtration does that... If I knew which segment handled that, I could double up on that part temporarily. (No fish in the tank yet)

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Ya soaking somewhere else might be your best bet (and scrub with a wire brush if you didnt while boiling), but if you don't feel like taking it back out and don't mind slightly tinted water I would just add a sheet of poly batting/filter floss cut to size using the sponge as a guide. Or remove the carbon and go with purigen so it's easier to maintain. Whichever method you use, I would definitely recommend frequent 50% wc's to keep ph stable and reduce the yellow coloration
 
I'm leaving them in the tank, as they're mounted to plexiglass bases and held down by the substrate, which is sand over potting soil... If I take them out, that's ALL going to get stirred up and I definitely don't want that... I've got some cut to fit fine filter floss, so I can do that, and will have to see if the LFS has Purigen...

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All those wasted tannins ... how sad.
 
Fish. They help make fish from blackwater habitats rather randy and makes the water look more natural in the dark water. People waste hundreds of dollars a year replacing driftwood just to get the tannins in their tanks.
 
This is going to be a community planted tank with probably some blue or Bolivian rams, and various tetras, for my son. Are any of those species from "blackwater" habitats? Possibly some cory cats and cherry or ghost shrimp also, need to do some more research on those though...

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The tetra and rams are both black water. There are also several species of corydora that are too. The shrimp will not do well in it.
 
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