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post #1 of 3 (permalink) Old 06-29-2007, 06:15 PM Thread Starter
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dark cloudy water?

I have a 5 gallon fish tank set up & all of a sudden the water seems to have gotten coudy & almost yellow" or "orangy" looking. I have a bio wheel filter system in it & just did a 1/2 water change as well as changed the filter cartridge - it dooesn't seem to be making a difference.

I've nothing but good luck with my fish tanks in the past but have never had this problems.

Any suggestions to clear up the water again?
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post #2 of 3 (permalink) Old 06-29-2007, 11:43 PM
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Could you give some more details? That will help a lot .

What fish are being housed and when was the last one added? How long has the tank been set up? What kind of lighting do you have? What are your water parameters? Do you have driftwood in the tank? Any plants?

Activated carbon almost always completely gets rid of the yellow tint by absorbing dissolved organic compounds. It needs to be replaced every few weeks, though, or it'll leach everything back into the tank. I don't know if you'd be able to use carbon in your filter, though, since I don't know what model it is. Is it an Eclipse tank? If that's the case you won't be able to do much with the filter and will have to rely on regular water changes to get rid of the yellow-ish water.

Oh, and if you have new driftwood it's probably just the tannins. But you didn't mention having any.

By the way, I wouldn't recommend changing the filter cartridge at the same time as doing a big water change in the future. You'll end up killing off a lot of beneficial bacteria which sometimes causes ammonia and/or nitrite spikes.


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post #3 of 3 (permalink) Old 06-30-2007, 09:44 PM
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Hey fstybrat,
Is your tank "sitting" in direct sunlight? That can cause an "algal bloom" which can turn water funny colors. The only other thing I can think of that Sasami didn't cover is the possibility of having some type of "incompatible" tank ornamentation. On one occasion, one of my brothers tried placing a resin or plastic stone in one of his aquariums and the pigments "bled" into the water. Luckily the fish were unaffected, but the water had to be changed. Good luck. <-Steve->
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