Yellow water, Newbie - The Planted Tank Forum
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post #1 of 6 (permalink) Old 07-14-2012, 03:03 AM Thread Starter
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Yellow water, Newbie

Hello folks,

I have been learning a lot from people on this site.

I have been growing out my 10g tank for six months, and flooded it last night.
Now I have a very yellow colored tank. I think I might just have a lot of tannins in the water, and I need to know what to do to clear it up.

Can I get some advise?

Tank is a 10 gallon. I layed down a bed of Miracle Grow organic potting mix. I capped that with about 1-2 inches of rinsed black diamond. I planted a carpet of Marsilea minuta. I have also planted many other plants.

As you can see from the photo, I have a large piece of driftwood in there. I boiled it about 10 times over 3 days to try and remove the tannins before I attached the java moss. The water is much more stained than the photo shows.

I use RO, DI, and UV sterilized water to flood the tank.
My parameters are:
pH 7.6
Ammonia 0
Nitrate 0
Nitrite 0

I'm using a Fluval 105 as a filter. I have used the carbon that came with the filter.

I think I may be getting tannins leaching from the driftwood, or the potting mix.
I did not sift the potting mix before I put it into the tank.

Does that sound like a proper assesment of the situation?

If so, How do I get clearer water?

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post #2 of 6 (permalink) Old 07-14-2012, 03:10 AM
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Let it be.
Tannins are not a problem for fish, shrimp or plants.

Regular water changes will keep on removing them, and gradually the things that are producing the tannins (soil and driftwood) will slow down the production.

Activated carbon and Purigen will remove tannins.
AC will get full and need to be replaced.
Purigen can be rejuvenated.
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post #3 of 6 (permalink) Old 07-14-2012, 03:31 AM
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It looks fine. You could try changing or adding carbon to the filter, but in my opinion I would just wait (I like the yellow/brown colored water).
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post #4 of 6 (permalink) Old 07-14-2012, 03:54 AM
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The tannins will start to fade with water changes. But the color eventually grows on you. Only time I even notice it now is when I do water changes and look at the old water in white buckets. Some fish actually prefer having tannins in the water
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post #5 of 6 (permalink) Old 07-14-2012, 01:59 PM Thread Starter
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Thanks for all of the input.

It really looks A LOT worse than the photo. I imagine the fish I put into it would probably be fine with the tannins. I just had a different vision in my mind.
I think I will try some purigen to see if I can get it down to a level I like.
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post #6 of 6 (permalink) Old 07-14-2012, 02:22 PM
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I find I have little love for the colored water unless it is a special tank with special fish. The best way for me to control tannins has been frequent, large water changes. I have also found it to be a major amount of work so I have gone to trying to avoid the wood which has tannins as it sometimes takes months for the water to slowly soak all the way through the wood. Wood can takes months laying in the wood pile before it dries enough to burn well and I think the process in the tank is much the same.
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