Monday, August 17, 2009

Cloudy Tank Water

My Koi tank became cloudy overnight. What do you think caused that? - James

Your Koi could have stirred up some waste or sediment at the bottom of the tank.

If you are using activated carbon to filter your water, it could be all used up. It won't be filtering your water, so ammonia is building up in it, giving it a cloudy appearance.

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