Fill the pet carrier with fresh, clear water and a layer of pea-sized rocks.
2. Add enough salt to make it feel like swimming pool water and add the fish.
3. Wait for the fish to adjust to the new environment before release.
4. After a few minutes, use a soft plastic squeegee or a clean toothbrush to gently scrape the side, then rinse under water to clean before taking another swipe. Remove all the ornaments and scrub in the old tank water to prevent shock in your fish. [11] Make sure your tank doesn’t get too much light because that can cause algae growth.