How Do You Replace Gravel In A Fish Tank?
Replacing gravel in an established fish tank is a job that will take some time to perform and must be done properly to ensure that no harm comes to your fish or other aquatic life. If you are replacing the gravel in a fish tank due to unsanitary aquarium conditions, this task may take longer than if you are simply replacing the gravel in the tank for aesthetic reasons. Fill an empty aquarium half-way with water from the dirty aquarium. Fill the container the rest of the way with clean water. Add a dechlorinating agent to the aquarium, and place an aerator in the tank to provide air for the fish while you are cleaning the original tank. Place the fish into the temporary aquarium. Empty the remaining water from the dirty aquarium and discard. Scoop out one to two cups of the old gravel and place aside. Aquarium gravel contains a beneficial bacterium that is essential to a healthy fish tank even when it is dirty, so it is important to reserve some of the old gravel to help re-colonize the
