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water change
 Forum Index > Goldfish, Koi and Ponds  Reply to topic   Post new topic
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supermanzano
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Joined: 05 Mar 2006
Location: Philippines

PostPosted: 2006.03.18(Sat)5:28    Post subject: water change Reply with quote

in a 9x3 meter koi pond, how often must I change the water in it. the water gets cloudy (algae growth )every 2 weeks so I totally drain it and replace it with new freshwater. I need your ideas guys. thanks.

jake
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Oscer
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Joined: 03 Nov 2005
Location: South Africa

PostPosted: 2006.03.18(Sat)8:11    Post subject: Reply with quote

Hi Jake

Very common problem and thankfully easily solved.

You can buy products that eliminate the algae or for a long term solution purchase a UV steriliser. This should solve your problem.
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piranha
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Joined: 21 Jul 2004
Location: Port Jefferson Station,N.Y.

PostPosted: 2006.03.19(Sun)0:09    Post subject: Reply with quote

I change the water in my pond at the start of the opening or spring season and in the fall or closing season. In season I use floating surface plants to block some direct sun and a UV sterilizer thats built into my pressurized cannister filter. This will solve any cloudy water problem caused by algae. To note be sure you don't overfeed, another cause of excessive algae.
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Joined: 03 Nov 2005
Location: South Africa

PostPosted: 2006.03.19(Sun)3:47    Post subject: Reply with quote

I would not recommend adding floating surface plants unless you already have or will be protecting them, koi often eat these types of plants.
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