What if the blue sticker on the bottom of the fish tank is black?

1. Warm water soaking: Pour out the water in the fish tank, and then completely soak the sticker in the fish tank with warm water. Warm water can soften the glue of the sticker and remove it more easily. You can dip a sponge or soft cloth in warm water and then gently wipe the surface of the sticker. If the sticker is small, you can pour warm water into the fish tank and then wipe the sticker with a sponge or soft cloth. Repeat this process several times until the sticker is completely torn off.

2. Use detergent; Pour the water out of the fish tank, then pour the detergent into the fish tank, add a proper amount of warm water and stir well. Then dip a sponge or soft cloth in detergent water and gently wipe the surface of the sticker. Detergent has the function of removing grease, which can help to remove the glue from the sticker. After wiping, clean the fish tank thoroughly with clean water.