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Post by ChemTrail on Apr 23, 2004 0:38:58 GMT -5
I have a 20 gallon freshwater heated tank. For the past several weeks, the water in my tank has turned green. It almost looks like anitfreeze. I had my water tested, and it tests okay. I've done two water changes but the color hasn't changed. The temp of the tank ranges from 72 - 76. I haven't added anything new to my tank. I feed my fish twice a day. I keep the light on for about 12 hours a day. Any help or suggestions would be greatly appreciated. Also, the water is murky, but it's been tested negative for ammonia. All my fish appear to be okay.
Thanks,
Larry
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Post by placerau on Apr 24, 2004 9:30:20 GMT -5
Does your tank sit in direct sunlight during the day? It could possibly be an algae bloom. What kind of filtrarion are you using and what fish are in your tank? Excessive lighting and high CO2 levels may be the cause of this. When you do water changes do you scrub the inside of the tank with an algae scraper? Light reflecting off even a thin layer of algae can cause the water to appear green.
EDIT: Duh me!! Forgot to mention .......... green water and nitrates. Overfeeding can often cause this too. Its better to feed a liitle bit 5 times a day than a whole bunch twice a day. Never feed more than the fish will eat in 10 minutes.
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Post by Larry on Apr 25, 2004 23:15:34 GMT -5
Thanks very much for your reply. I have a Whisper 20 power filter, 1 live plant, rocks and driftwood from beach, but I have boiled it twice, and I never had a problem in my 10 gallon tank. I have a large gold gourami, 6 various tetras, and a placasimous. I feed twice a day, but the food is always gone within 10 minutes. Had the water tested last week. No nitrate problem. The water is actually green. When you take a sample out, it is definitly green. The tank is not in direct sunlight. However, I normally leave the flourescent light on from 6:00 AM to 11:00 PM. As I mentioned before, the temperature of the water varies from 72-76 degrees.
Any additional help would be greatly appreciated.
Larry
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Post by placerau on Apr 26, 2004 21:01:06 GMT -5
The only other thing I can think of would be your driftwood. Try this ...... take the driftwood out and place it in a bucket of water for 24 hours and see if the water in the bucket changes color. hth
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DD
Fishy
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Post by DD on Aug 14, 2004 21:39:01 GMT -5
What kind of fish do u have in the 20? Are you using a gravel vacuum cleaner? those really help cuz they take away all the dirt from under the rocks that can be contributing to the color changes of the water
-good luck
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Post by tony on Oct 9, 2004 23:53:25 GMT -5
for starters keep up the water changes! but dont over do it!! then cut the light for like 3 or 4 days light just adds to the problem  |
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Post by tony on Oct 9, 2004 23:54:02 GMT -5
for starters keep up the water changes! but dont over do it!! then cut the light for like 3 or 4 days light just adds to the problem |
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Post by ArmBender on Oct 11, 2005 22:21:23 GMT -5
I had the same problem with my tank......I leave my light on 24hrs a day........so lighting may be the problem.. I bought algaefix at the fish store and it changed from the green antifreeze color to clear in about 2 hours.... now i just put it in every 2 weeks or so and it has been doing great.
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