Traditional Culture Encyclopedia - Traditional festivals - How often should the filter cotton in the fish tank be washed? How to wash is correct! ?
How often should the filter cotton in the fish tank be washed? How to wash is correct! ?
1 week. Wash with the original fish tank. Don't push too hard. Just wash the dirty things on it. Washing with the original fish tank can ensure that nitrifying bacteria will not die in large numbers, and nitrifying bacteria will decompose nitrate and nitrite that are harmful to fish and invisible to the naked eye.
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