tanning water - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 12 Old 03-16-2012, 05:42 AM Thread Starter
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tanning water

hey guys i have some new drift wood (magrove root) and it has been leaching out in my fish tank and i am wondering if it is ok for the fish? and how dark will the water colour get? ( before i put it in a clean it and then i cleaning it again today)


has anyone got any pics of really badily or your own prefrence of leaching in your tanks?

thank you
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post #2 of 12 Old 03-16-2012, 06:03 AM
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Tannins are safe for the fish, and in a lot of causes mimics their natural environment. People usually call it "blackwater", but it never gets black just a brown-ish tea color.

Over time it will stop, how long depends on the type of wood. I'm not familiar with what you have. If you don't want the look you can boil it on the stove several times to speed the process up, but depending on the wood that still won't lessen it (for example I have a piece of Moponi that I boiled 7 or 8 times, still leeches lots of tannins).
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post #3 of 12 Old 03-16-2012, 10:46 AM
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Originally Posted by Geomancer View Post
Tannins are safe for the fish, and in a lot of causes mimics their natural environment. People usually call it "blackwater", but it never gets black just a brown-ish tea color.

Over time it will stop, how long depends on the type of wood. I'm not familiar with what you have. If you don't want the look you can boil it on the stove several times to speed the process up, but depending on the wood that still won't lessen it (for example I have a piece of Moponi that I boiled 7 or 8 times, still leeches lots of tannins).
But typically how long does it take to Leach the driftwood completely?

125Gal: 7 Silver Dollars, 1 Albino BN Plecos, 1 Green Terror, 1 Gold Severum, Red Severum, 8 Rio Cahals, and 2 Festivum

55Gal: 3 German Blue Rams, 2 Bolivian Rams, 1 Super Red Pleco, 9 Bloodfin Tetras, and 9 Oto Catfish

29Gal: Quarentine/Hospital Tank

20Gal: Female Pastel Ball Python
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post #4 of 12 Old 03-16-2012, 11:04 AM
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100%? Never.

But enough that you can't really tell... again, depends on the type and size. My Mopani still leeches enough to notice. My wife has Malaysian, and I can't tell unless I put it in a clear vial and held it up to a white background.
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post #5 of 12 Old 03-16-2012, 11:17 AM
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Originally Posted by Geomancer View Post
100%? Never.

But enough that you can't really tell... again, depends on the type and size. My Mopani still leeches enough to notice. My wife has Malaysian, and I can't tell unless I put it in a clear vial and held it up to a white background.
Ok so how many attempts at boiling to where cant really notice it. I have a 125gal, and am planning on friftwood, but am kinda turned away at the fact it dirties your water, and makes it not clear

125Gal: 7 Silver Dollars, 1 Albino BN Plecos, 1 Green Terror, 1 Gold Severum, Red Severum, 8 Rio Cahals, and 2 Festivum

55Gal: 3 German Blue Rams, 2 Bolivian Rams, 1 Super Red Pleco, 9 Bloodfin Tetras, and 9 Oto Catfish

29Gal: Quarentine/Hospital Tank

20Gal: Female Pastel Ball Python
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post #6 of 12 Old 03-17-2012, 12:08 PM
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It is completely safe for fish, as Geomancer said, but I just want to emphasize that.

I understand the appearance aspect, and I personally do not like discolored water. I had mangrove root many years ago, and from what I can remember it leeched tannins fairly quickly. I've never boiled wood, I just put it in the tank. Regular water changes will remove the tannins bit by bit, to the point where you won't even notice them. As Geo also said, wood never totally stops leeching tannin, but after the initial period it is less and less noticeable. And I have a lot of wood in my tanks. I now use Malaysian Driftwood which I find is very similar in this respect (and in appearance) to mangrove root.

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The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #7 of 12 Old 03-17-2012, 12:12 PM
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I have two small pieces of mopani in my 110L tank and i soaked them for 1 week then boiled them in a pot about 4 times and my water is still a yellow/brown colour, although it is only mild, but the water is not crystal clear. I don't mind it, i have a lot of live plants also so they could be colouring the water a bit too?

I should think after several months of partial water changes the colour the wood has leeched will lessen.
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post #8 of 12 Old 03-17-2012, 12:40 PM
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Originally Posted by rhymon78 View Post
I have two small pieces of mopani in my 110L tank and i soaked them for 1 week then boiled them in a pot about 4 times and my water is still a yellow/brown colour, although it is only mild, but the water is not crystal clear. I don't mind it, i have a lot of live plants also so they could be colouring the water a bit too?

I should think after several months of partial water changes the colour the wood has leeched will lessen.
I have used Mopani wood some time back, and found it to be longer leeching tannins than the mangrove or malaysian driftwood.

Another issue with Mopani is fungus. Keep a close eye on it; if you see any white fungus growing along the wood, it might be wise to remove it. Without knowing the species of fungus (there are many) one can't be certain, but some of this is highly toxic.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #9 of 12 Old 03-17-2012, 08:01 PM
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Funny you should say that! after about a week of my mopani being in the tank one of the pieces started growing this ectoplasm milky white slime all around it, about 1cm thick, took it out washed it off and it grew back, took it out again and that slime has kind of dried up and crusted off. but now there is lots of white patches all along it! just how you say.... weird.

It doesn't seem to be having any bad effect, but might just take it out just incase. would like some real wood in there but might just buy some fake wood for the fish to swim in and out of.
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post #10 of 12 Old 03-18-2012, 05:18 AM
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Quote:
Originally Posted by Byron View Post
I have used Mopani wood some time back, and found it to be longer leeching tannins than the mangrove or malaysian driftwood.

Another issue with Mopani is fungus. Keep a close eye on it; if you see any white fungus growing along the wood, it might be wise to remove it. Without knowing the species of fungus (there are many) one can't be certain, but some of this is highly toxic.

Byron.
I have removed the offending mopani, and given it a right good scrubbing! also poured boiling water over it too hopefully that will remove the fungi. ill see, keep an eye on it.
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