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Registered: Feb 2004

posted 02-13-2004 11:18 AM         

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I have a 29 gallon tank and it has been setup for about a year with very clear water. About 2 months ago I did a water change of about 25 percent and the water stayed just cloudy for a couple of days then turned green. About 3 weeks ago I changed nearly all the water out and put fresh in and the Tank stayed crystal clear for about a week and done the same thing again. I keep the lights off now. I have tried the algae products like algae fix and algae destroyer but with no avail. Any Suggestions? Thanks

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Posts: 266
From:Canada
Registered: Sep 2003

posted 02-13-2004 11:23 AM         

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What kind/size of fish do you have? Changing all of the water is generally a bad idea as it disrupts the balance of ammonia and nitrite reducing bacteria and can cause the tank to "recycle". In a well balanced tank you shouldn't have to change more than 20-25% per week.
As it was fine for a year, I'm guessing that the fish have probably grown to the point that the tank is overstocked.

[This message has been edited by katanas_edge (edited 02-13-2004).]

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Posts: 3
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Registered: Feb 2004

posted 02-13-2004 11:35 AM         

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thanks for your reply. I have about 15 fish in the tank. Mainly tetras with two angelfish and a chinese algae eater and a Pleco. I had two red finned sharks but lost both of them this week. The tank did start to recycle or though it seemed to but it turned green within a couple of days. There isnt any algae growing on anything just the green water.

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