The Planted Tank Forum - View Single Post - Cloudy Water Overnight! Help!! UPDATED 12/4
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Old 11-29-2012, 09:02 PM   #5
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Originally Posted by Johnny Tang View Post
I actually had about 75% of the sand and most of the wood and 8 gallons of the water in an 8 gallon tank for about 2 months before.

I moved everything over to the 13 gallon 3 weeks ago. Should I have cycled the tank again? The fish and snails do not seem to be bothered by the water quality.
I assume you moved the filter over as well? Most of the beneficial nitrifying bacteria reside in the filter media and not the substrate/water column.

As for the cloudiness, it may also be an algae breakout. Take a small amount of water and put it into a clear (or white paper) cup. If there is a tint of green, then it may be an algal bloom instead of a bacterial bloom.

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