Is water change necessary during fishless cycle using fish food only

mattgirl

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As long as the cycle is moving forward a water change shouldn't be necessary. When using fish food for the ammonia source it would be best not to pull the ammonia out of there with a water change. When cycling with bottled ammonia it is easy to just replace what has been removed but when using fish food it has to decompose. If you pulled the ammonia out of there it would take a few days for the food to decompose and form more ammonia.
 

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