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如何正确更换鱼缸水以及水草缸的水 | How to Properly Change Water in an aquarium and Aquatic Plant Tank

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Maintaining a healthy and clean environment is crucial for the well-being of fish and aquatic plants in a fish tank or an aquatic plant tank. Regular water changes are essential to keep the water parameters stable and remove accumulated waste and toxins. In this article, we will discuss step-by-step instructions on how to properly change the water in a Fish tank and an aquatic plant tank.

Step 1: Gather the necessary equipment

Before starting the water change process, gather all the necessary equipment. This includes a siphon or a gravel vacuum, a bucket designated for Aquarium use only, a water conditioner, and a thermometer.

Step 2: Prepare the new water

Fill the designated bucket with tap water and let it sit for at least 24 hours. This allows the chlorine and other harmful chemicals to dissipate. Alternatively, you can use a water conditioner to instantly remove these chemicals from the tap water. It is important to match the temperature of the new water with the current aquarium water to prevent shocking the Fish or aquatic plants.

Step 3: Remove the old water

Using a siphon or a gravel vacuum, start removing the old water from the fish tank or the aquatic plant tank. Begin by gently vacuuming the gravel or substrate to remove any debris or waste. Make sure to only remove a portion of the water, typically around 25-30% of the total volume. Removing too much water can disturb the biological balance of the tank.

Step 4: Clean the tank accessories

While removing the old water, take the opportunity to clean any tank accessories such as decorations, rocks, or plants. Gently scrub them with a soft brush or sponge to remove any algae or debris. Avoid using soap or chemicals as they can be harmful to the Fish and aquatic plants.

Step 5: Add the new water

Once the old water has been removed and the tank accessories have been cleaned, it is time to add the new water. Slowly pour the conditioned water into the tank, taking care not to disturb the fish or the aquatic plants. It is recommended to pour the water onto a plate or a saucer to minimize disturbance.

Step 6: Test and adjust the water parameters

After adding the new water, it is important to test the water parameters such as pH, ammonia, nitrite, and nitrate levels. Make any necessary adjustments using appropriate water conditioners or additives to ensure the water is within the ideal range for the fish and aquatic plants.

Step 7: Maintain a regular water change schedule

To maintain a healthy and balanced environment, it is crucial to establish a regular water change schedule. This will depend on the size of the tank, the number of fish or aquatic plants, and the filtration system. Generally, a water change of 25-30% every 1-2 weeks is recommended.


Regular water changes are essential for maintaining a healthy and clean environment in a fish tank or an aquatic plant tank. By following the step-by-step instructions outlined in this article, you can ensure that the water parameters remain stable and the fish and aquatic plants thrive. Remember to always match the temperature of the new water and test the water parameters regularly. Happy fishkeeping and aquascaping!


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